Finding the Fourth Proportional to 79,688.72, 109,973.16 and 43,881.20

Step by Step Solution

1. Step 1: Write the proportion equation
   79,688.72 : 109,973.16 = 43,881.20 : x
2. Step 2: Convert to fraction form
   79,688.72/109,973.16 = 43,881.20/x
3. Step 3: Cross multiply
   79,688.72x = 109,973.16 × 43,881.20
4. Step 4: Simplify right side
   79,688.72x = 4,825,754,228.59
5. Step 5: Solve for x
   x = 4,825,754,228.59/79,688.72
6. Step 6: Final answer
   x = 60,557.56