Finding the Fourth Proportional to 131,258.34, 196,888.05 and 72,061.74

Step by Step Solution

1. Step 1: Write the proportion equation
   131,258.34 : 196,888.05 = 72,061.74 : x
2. Step 2: Convert to fraction form
   131,258.34/196,888.05 = 72,061.74/x
3. Step 3: Cross multiply
   131,258.34x = 196,888.05 × 72,061.74
4. Step 4: Simplify right side
   131,258.34x = 14,188,095,468.21
5. Step 5: Solve for x
   x = 14,188,095,468.21/131,258.34
6. Step 6: Final answer
   x = 108,092.91