Finding the Fourth Proportional to 89,471.26, 123,482.30 and 57,732.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,471.26 : 123,482.30 = 57,732.42 : x
2. Step 2: Convert to fraction form
   89,471.26/123,482.30 = 57,732.42/x
3. Step 3: Cross multiply
   89,471.26x = 123,482.30 × 57,732.42
4. Step 4: Simplify right side
   89,471.26x = 7,128,932,006.17
5. Step 5: Solve for x
   x = 7,128,932,006.17/89,471.26
6. Step 6: Final answer
   x = 79,678.46