Finding the Fourth Proportional to 89,129.68, 133,694.52 and 42,357.04

Step by Step Solution

1. Step 1: Write the proportion equation
   89,129.68 : 133,694.52 = 42,357.04 : x
2. Step 2: Convert to fraction form
   89,129.68/133,694.52 = 42,357.04/x
3. Step 3: Cross multiply
   89,129.68x = 133,694.52 × 42,357.04
4. Step 4: Simplify right side
   89,129.68x = 5,662,904,131.42
5. Step 5: Solve for x
   x = 5,662,904,131.42/89,129.68
6. Step 6: Final answer
   x = 63,535.56