Finding the Fourth Proportional to 142,387.02, 213,573.18 and 42,548.04

Step by Step Solution

1. Step 1: Write the proportion equation
   142,387.02 : 213,573.18 = 42,548.04 : x
2. Step 2: Convert to fraction form
   142,387.02/213,573.18 = 42,548.04/x
3. Step 3: Cross multiply
   142,387.02x = 213,573.18 × 42,548.04
4. Step 4: Simplify right side
   142,387.02x = 9,087,120,205.57
5. Step 5: Solve for x
   x = 9,087,120,205.57/142,387.02
6. Step 6: Final answer
   x = 63,819.86