Finding the Fourth Proportional to 89,851.59, 124,159.21 and 76,928.47

Step by Step Solution

1. Step 1: Write the proportion equation
   89,851.59 : 124,159.21 = 76,928.47 : x
2. Step 2: Convert to fraction form
   89,851.59/124,159.21 = 76,928.47/x
3. Step 3: Cross multiply
   89,851.59x = 124,159.21 × 76,928.47
4. Step 4: Simplify right side
   89,851.59x = 9,551,378,061.71
5. Step 5: Solve for x
   x = 9,551,378,061.71/89,851.59
6. Step 6: Final answer
   x = 106,301.71