Finding the Fourth Proportional to 81,287.73, 121,773.78 and 59,901.59

Step by Step Solution

1. Step 1: Write the proportion equation
   81,287.73 : 121,773.78 = 59,901.59 : x
2. Step 2: Convert to fraction form
   81,287.73/121,773.78 = 59,901.59/x
3. Step 3: Cross multiply
   81,287.73x = 121,773.78 × 59,901.59
4. Step 4: Simplify right side
   81,287.73x = 7,294,443,346.74
5. Step 5: Solve for x
   x = 7,294,443,346.74/81,287.73
6. Step 6: Final answer
   x = 89,736.09