Finding the Fourth Proportional to 137,647,892.52, 189,959,103.42 and 74,920,958.46

Step by Step Solution

1. Step 1: Write the proportion equation
   137,647,892.52 : 189,959,103.42 = 74,920,958.46 : x
2. Step 2: Convert to fraction form
   137,647,892.52/189,959,103.42 = 74,920,958.46/x
3. Step 3: Cross multiply
   137,647,892.52x = 189,959,103.42 × 74,920,958.46
4. Step 4: Simplify right side
   137,647,892.52x = 14,231,918,096,428,662
5. Step 5: Solve for x
   x = 14,231,918,096,428,662/137,647,892.52
6. Step 6: Final answer
   x = 103,393,650.54