Finding the Fourth Proportional to 89,861.47, 134,812.05 and 26,686.73

Step by Step Solution

1. Step 1: Write the proportion equation
   89,861.47 : 134,812.05 = 26,686.73 : x
2. Step 2: Convert to fraction form
   89,861.47/134,812.05 = 26,686.73/x
3. Step 3: Cross multiply
   89,861.47x = 134,812.05 × 26,686.73
4. Step 4: Simplify right side
   89,861.47x = 3,597,693,016.05
5. Step 5: Solve for x
   x = 3,597,693,016.05/89,861.47
6. Step 6: Final answer
   x = 40,035.99