Finding the Fourth Proportional to 126,425.82, 189,575.24 and 42,156.15

Step by Step Solution

1. Step 1: Write the proportion equation
   126,425.82 : 189,575.24 = 42,156.15 : x
2. Step 2: Convert to fraction form
   126,425.82/189,575.24 = 42,156.15/x
3. Step 3: Cross multiply
   126,425.82x = 189,575.24 × 42,156.15
4. Step 4: Simplify right side
   126,425.82x = 7,991,762,253.73
5. Step 5: Solve for x
   x = 7,991,762,253.73/126,425.82
6. Step 6: Final answer
   x = 63,213.05