Finding the Fourth Proportional to 106,865.92, 147,365.76 and 71,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   106,865.92 : 147,365.76 = 71,061.76 : x
2. Step 2: Convert to fraction form
   106,865.92/147,365.76 = 71,061.76/x
3. Step 3: Cross multiply
   106,865.92x = 147,365.76 × 71,061.76
4. Step 4: Simplify right side
   106,865.92x = 10,472,070,269.34
5. Step 5: Solve for x
   x = 10,472,070,269.34/106,865.92
6. Step 6: Final answer
   x = 97,992.61