Finding the Fourth Proportional to 9,515,686.43, 13,131,614.16 and 5,164,772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,515,686.43 : 13,131,614.16 = 5,164,772.72 : x
2. Step 2: Convert to fraction form
   9,515,686.43/13,131,614.16 = 5,164,772.72/x
3. Step 3: Cross multiply
   9,515,686.43x = 13,131,614.16 × 5,164,772.72
4. Step 4: Simplify right side
   9,515,686.43x = 67,821,802,615,962.75
5. Step 5: Solve for x
   x = 67,821,802,615,962.75/9,515,686.43
6. Step 6: Final answer
   x = 7,127,368.38