Finding the Fourth Proportional to 89,373.71, 133,856.37 and 42,659.39

Step by Step Solution

1. Step 1: Write the proportion equation
   89,373.71 : 133,856.37 = 42,659.39 : x
2. Step 2: Convert to fraction form
   89,373.71/133,856.37 = 42,659.39/x
3. Step 3: Cross multiply
   89,373.71x = 133,856.37 × 42,659.39
4. Step 4: Simplify right side
   89,373.71x = 5,710,231,426.46
5. Step 5: Solve for x
   x = 5,710,231,426.46/89,373.71
6. Step 6: Final answer
   x = 63,891.62