Finding the Fourth Proportional to 79,321.96, 109,578.18 and 63,385.48

Step by Step Solution

1. Step 1: Write the proportion equation
   79,321.96 : 109,578.18 = 63,385.48 : x
2. Step 2: Convert to fraction form
   79,321.96/109,578.18 = 63,385.48/x
3. Step 3: Cross multiply
   79,321.96x = 109,578.18 × 63,385.48
4. Step 4: Simplify right side
   79,321.96x = 6,945,665,536.83
5. Step 5: Solve for x
   x = 6,945,665,536.83/79,321.96
6. Step 6: Final answer
   x = 87,562.96