Finding the Fourth Proportional to 108,649.55, 162,941.17 and 75,131.03

Step by Step Solution

1. Step 1: Write the proportion equation
   108,649.55 : 162,941.17 = 75,131.03 : x
2. Step 2: Convert to fraction form
   108,649.55/162,941.17 = 75,131.03/x
3. Step 3: Cross multiply
   108,649.55x = 162,941.17 × 75,131.03
4. Step 4: Simplify right side
   108,649.55x = 12,241,938,151.03
5. Step 5: Solve for x
   x = 12,241,938,151.03/108,649.55
6. Step 6: Final answer
   x = 112,673.63