Finding the Fourth Proportional to 89,664.32, 123,715 and 59,034.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,664.32 : 123,715 = 59,034.16 : x
2. Step 2: Convert to fraction form
   89,664.32/123,715 = 59,034.16/x
3. Step 3: Cross multiply
   89,664.32x = 123,715 × 59,034.16
4. Step 4: Simplify right side
   89,664.32x = 7,303,411,104.40
5. Step 5: Solve for x
   x = 7,303,411,104.40/89,664.32
6. Step 6: Final answer
   x = 81,452.81