Finding the Fourth Proportional to 89,156.40, 133,674 and 42,414

Step by Step Solution

1. Step 1: Write the proportion equation
   89,156.40 : 133,674 = 42,414 : x
2. Step 2: Convert to fraction form
   89,156.40/133,674 = 42,414/x
3. Step 3: Cross multiply
   89,156.40x = 133,674 × 42,414
4. Step 4: Simplify right side
   89,156.40x = 5,669,649,036
5. Step 5: Solve for x
   x = 5,669,649,036/89,156.40
6. Step 6: Final answer
   x = 63,592.17