Finding the Fourth Proportional to 117,812.88, 162,567 and 79,655.40

Step by Step Solution

1. Step 1: Write the proportion equation
   117,812.88 : 162,567 = 79,655.40 : x
2. Step 2: Convert to fraction form
   117,812.88/162,567 = 79,655.40/x
3. Step 3: Cross multiply
   117,812.88x = 162,567 × 79,655.40
4. Step 4: Simplify right side
   117,812.88x = 12,949,339,411.80
5. Step 5: Solve for x
   x = 12,949,339,411.80/117,812.88
6. Step 6: Final answer
   x = 109,914.46