Finding the Fourth Proportional to 85,590,656,863.31, 128,364,769,588.88 and 28,929,260,192.37

Step by Step Solution

1. Step 1: Write the proportion equation
   85,590,656,863.31 : 128,364,769,588.88 = 28,929,260,192.37 : x
2. Step 2: Convert to fraction form
   85,590,656,863.31/128,364,769,588.88 = 28,929,260,192.37/x
3. Step 3: Cross multiply
   85,590,656,863.31x = 128,364,769,588.88 × 28,929,260,192.37
4. Step 4: Simplify right side
   85,590,656,863.31x = 3,713,497,818,970,333,380,608
5. Step 5: Solve for x
   x = 3,713,497,818,970,333,380,608/85,590,656,863.31
6. Step 6: Final answer
   x = 43,386,719,474.54