Finding the Fourth Proportional to 131,446.58, 197,139.15 and 42,677.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,446.58 : 197,139.15 = 42,677.30 : x
2. Step 2: Convert to fraction form
   131,446.58/197,139.15 = 42,677.30/x
3. Step 3: Cross multiply
   131,446.58x = 197,139.15 × 42,677.30
4. Step 4: Simplify right side
   131,446.58x = 8,413,366,646.30
5. Step 5: Solve for x
   x = 8,413,366,646.30/131,446.58
6. Step 6: Final answer
   x = 64,005.98