Finding the Fourth Proportional to 10,899,121.50, 16,348,705.20 and 10,233,242.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,899,121.50 : 16,348,705.20 = 10,233,242.55 : x
2. Step 2: Convert to fraction form
   10,899,121.50/16,348,705.20 = 10,233,242.55/x
3. Step 3: Cross multiply
   10,899,121.50x = 16,348,705.20 × 10,233,242.55
4. Step 4: Simplify right side
   10,899,121.50x = 167,300,265,690,046.25
5. Step 5: Solve for x
   x = 167,300,265,690,046.25/10,899,121.50
6. Step 6: Final answer
   x = 15,349,885.37