Finding the Fourth Proportional to 89,061.48, 133,606.80 and 42,298.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,061.48 : 133,606.80 = 42,298.56 : x
2. Step 2: Convert to fraction form
   89,061.48/133,606.80 = 42,298.56/x
3. Step 3: Cross multiply
   89,061.48x = 133,606.80 × 42,298.56
4. Step 4: Simplify right side
   89,061.48x = 5,651,375,246.21
5. Step 5: Solve for x
   x = 5,651,375,246.21/89,061.48
6. Step 6: Final answer
   x = 63,454.76