Finding the Fourth Proportional to 89,839.71, 123,963.33 and 57,602.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,839.71 : 123,963.33 = 57,602.52 : x
2. Step 2: Convert to fraction form
   89,839.71/123,963.33 = 57,602.52/x
3. Step 3: Cross multiply
   89,839.71x = 123,963.33 × 57,602.52
4. Step 4: Simplify right side
   89,839.71x = 7,140,600,195.59
5. Step 5: Solve for x
   x = 7,140,600,195.59/89,839.71
6. Step 6: Final answer
   x = 79,481.56