Finding the Fourth Proportional to 117,417.47, 176,139.56 and 42,572.86

Step by Step Solution

1. Step 1: Write the proportion equation
   117,417.47 : 176,139.56 = 42,572.86 : x
2. Step 2: Convert to fraction form
   117,417.47/176,139.56 = 42,572.86/x
3. Step 3: Cross multiply
   117,417.47x = 176,139.56 × 42,572.86
4. Step 4: Simplify right side
   117,417.47x = 7,498,764,494.42
5. Step 5: Solve for x
   x = 7,498,764,494.42/117,417.47
6. Step 6: Final answer
   x = 63,864.13