Finding the Fourth Proportional to 131,248.72, 196,930.76 and 68,904.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,248.72 : 196,930.76 = 68,904.72 : x
2. Step 2: Convert to fraction form
   131,248.72/196,930.76 = 68,904.72/x
3. Step 3: Cross multiply
   131,248.72x = 196,930.76 × 68,904.72
4. Step 4: Simplify right side
   131,248.72x = 13,569,458,877.19
5. Step 5: Solve for x
   x = 13,569,458,877.19/131,248.72
6. Step 6: Final answer
   x = 103,387.36