Finding the Fourth Proportional to 13,935,490.90, 20,895,100.71 and 5,405,860.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,935,490.90 : 20,895,100.71 = 5,405,860.42 : x
2. Step 2: Convert to fraction form
   13,935,490.90/20,895,100.71 = 5,405,860.42/x
3. Step 3: Cross multiply
   13,935,490.90x = 20,895,100.71 × 5,405,860.42
4. Step 4: Simplify right side
   13,935,490.90x = 112,955,997,900,102.91
5. Step 5: Solve for x
   x = 112,955,997,900,102.91/13,935,490.90
6. Step 6: Final answer
   x = 8,105,634.65