Finding the Fourth Proportional to 12,644,430, 17,445,240.72 and 7,744,543.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,644,430 : 17,445,240.72 = 7,744,543.98 : x
2. Step 2: Convert to fraction form
   12,644,430/17,445,240.72 = 7,744,543.98/x
3. Step 3: Cross multiply
   12,644,430x = 17,445,240.72 × 7,744,543.98
4. Step 4: Simplify right side
   12,644,430x = 135,105,433,997,726.86
5. Step 5: Solve for x
   x = 135,105,433,997,726.86/12,644,430
6. Step 6: Final answer
   x = 10,684,976.23