Finding the Fourth Proportional to 117,531.72, 162,153.72 and 75,114.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,531.72 : 162,153.72 = 75,114.72 : x
2. Step 2: Convert to fraction form
   117,531.72/162,153.72 = 75,114.72/x
3. Step 3: Cross multiply
   117,531.72x = 162,153.72 × 75,114.72
4. Step 4: Simplify right side
   117,531.72x = 12,180,131,274.76
5. Step 5: Solve for x
   x = 12,180,131,274.76/117,531.72
6. Step 6: Final answer
   x = 103,632.72