Finding the Fourth Proportional to 131,434.82, 197,208.72 and 42,715.52

Step by Step Solution

1. Step 1: Write the proportion equation
   131,434.82 : 197,208.72 = 42,715.52 : x
2. Step 2: Convert to fraction form
   131,434.82/197,208.72 = 42,715.52/x
3. Step 3: Cross multiply
   131,434.82x = 197,208.72 × 42,715.52
4. Step 4: Simplify right side
   131,434.82x = 8,423,873,023.33
5. Step 5: Solve for x
   x = 8,423,873,023.33/131,434.82
6. Step 6: Final answer
   x = 64,091.64