Finding the Fourth Proportional to 131,169.19, 196,759.94 and 42,429.61

Step by Step Solution

1. Step 1: Write the proportion equation
   131,169.19 : 196,759.94 = 42,429.61 : x
2. Step 2: Convert to fraction form
   131,169.19/196,759.94 = 42,429.61/x
3. Step 3: Cross multiply
   131,169.19x = 196,759.94 × 42,429.61
4. Step 4: Simplify right side
   131,169.19x = 8,348,447,517.82
5. Step 5: Solve for x
   x = 8,348,447,517.82/131,169.19
6. Step 6: Final answer
   x = 63,646.41