Finding the Fourth Proportional to 131,424.10, 196,909.35 and 61,159.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,424.10 : 196,909.35 = 61,159.30 : x
2. Step 2: Convert to fraction form
   131,424.10/196,909.35 = 61,159.30/x
3. Step 3: Cross multiply
   131,424.10x = 196,909.35 × 61,159.30
4. Step 4: Simplify right side
   131,424.10x = 12,042,838,009.46
5. Step 5: Solve for x
   x = 12,042,838,009.46/131,424.10
6. Step 6: Final answer
   x = 91,633.41