Finding the Fourth Proportional to 89,861.13, 124,064.06 and 63,111.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,861.13 : 124,064.06 = 63,111.69 : x
2. Step 2: Convert to fraction form
   89,861.13/124,064.06 = 63,111.69/x
3. Step 3: Cross multiply
   89,861.13x = 124,064.06 × 63,111.69
4. Step 4: Simplify right side
   89,861.13x = 7,829,892,179.30
5. Step 5: Solve for x
   x = 7,829,892,179.30/89,861.13
6. Step 6: Final answer
   x = 87,133.25