Finding the Fourth Proportional to 89,691.50, 123,749.64 and 62,437.04

Step by Step Solution

1. Step 1: Write the proportion equation
   89,691.50 : 123,749.64 = 62,437.04 : x
2. Step 2: Convert to fraction form
   89,691.50/123,749.64 = 62,437.04/x
3. Step 3: Cross multiply
   89,691.50x = 123,749.64 × 62,437.04
4. Step 4: Simplify right side
   89,691.50x = 7,726,561,222.67
5. Step 5: Solve for x
   x = 7,726,561,222.67/89,691.50
6. Step 6: Final answer
   x = 86,145.97