Finding the Fourth Proportional to 114,225.40, 170,520.56 and 99,282.72

Step by Step Solution

1. Step 1: Write the proportion equation
   114,225.40 : 170,520.56 = 99,282.72 : x
2. Step 2: Convert to fraction form
   114,225.40/170,520.56 = 99,282.72/x
3. Step 3: Cross multiply
   114,225.40x = 170,520.56 × 99,282.72
4. Step 4: Simplify right side
   114,225.40x = 16,929,745,012.72
5. Step 5: Solve for x
   x = 16,929,745,012.72/114,225.40
6. Step 6: Final answer
   x = 148,213.49