Finding the Fourth Proportional to 104,711,406.91, 144,499,978.58 and 57,672,860.74

Step by Step Solution

1. Step 1: Write the proportion equation
   104,711,406.91 : 144,499,978.58 = 57,672,860.74 : x
2. Step 2: Convert to fraction form
   104,711,406.91/144,499,978.58 = 57,672,860.74/x
3. Step 3: Cross multiply
   104,711,406.91x = 144,499,978.58 × 57,672,860.74
4. Step 4: Simplify right side
   104,711,406.91x = 8,333,727,141,360,255
5. Step 5: Solve for x
   x = 8,333,727,141,360,255/104,711,406.91
6. Step 6: Final answer
   x = 79,587,576.82