Finding the Fourth Proportional to 89,425.08, 123,455.34 and 62,649.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,425.08 : 123,455.34 = 62,649.72 : x
2. Step 2: Convert to fraction form
   89,425.08/123,455.34 = 62,649.72/x
3. Step 3: Cross multiply
   89,425.08x = 123,455.34 × 62,649.72
4. Step 4: Simplify right side
   89,425.08x = 7,734,442,483.50
5. Step 5: Solve for x
   x = 7,734,442,483.50/89,425.08
6. Step 6: Final answer
   x = 86,490.75