Finding the Fourth Proportional to 81,525,518.91, 122,364,895.14 and 42,691,844.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,525,518.91 : 122,364,895.14 = 42,691,844.34 : x
2. Step 2: Convert to fraction form
   81,525,518.91/122,364,895.14 = 42,691,844.34/x
3. Step 3: Cross multiply
   81,525,518.91x = 122,364,895.14 × 42,691,844.34
4. Step 4: Simplify right side
   81,525,518.91x = 5,223,983,055,997,303
5. Step 5: Solve for x
   x = 5,223,983,055,997,303/81,525,518.91
6. Step 6: Final answer
   x = 64,077,887.83