Finding the Fourth Proportional to 22,400,655.29, 30,915,852.25 and 12,613,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,400,655.29 : 30,915,852.25 = 12,613,006.72 : x
2. Step 2: Convert to fraction form
   22,400,655.29/30,915,852.25 = 12,613,006.72/x
3. Step 3: Cross multiply
   22,400,655.29x = 30,915,852.25 × 12,613,006.72
4. Step 4: Simplify right side
   22,400,655.29x = 389,941,852,183,777.12
5. Step 5: Solve for x
   x = 389,941,852,183,777.12/22,400,655.29
6. Step 6: Final answer
   x = 17,407,609.16