Finding the Fourth Proportional to 79,645.60, 109,915.92 and 43,838.72

Step by Step Solution

1. Step 1: Write the proportion equation
   79,645.60 : 109,915.92 = 43,838.72 : x
2. Step 2: Convert to fraction form
   79,645.60/109,915.92 = 43,838.72/x
3. Step 3: Cross multiply
   79,645.60x = 109,915.92 × 43,838.72
4. Step 4: Simplify right side
   79,645.60x = 4,818,573,240.42
5. Step 5: Solve for x
   x = 4,818,573,240.42/79,645.60
6. Step 6: Final answer
   x = 60,500.18