Finding the Fourth Proportional to 89,350.32, 123,278.28 and 57,537.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,350.32 : 123,278.28 = 57,537.68 : x
2. Step 2: Convert to fraction form
   89,350.32/123,278.28 = 57,537.68/x
3. Step 3: Cross multiply
   89,350.32x = 123,278.28 × 57,537.68
4. Step 4: Simplify right side
   89,350.32x = 7,093,146,225.59
5. Step 5: Solve for x
   x = 7,093,146,225.59/89,350.32
6. Step 6: Final answer
   x = 79,385.80