Finding the Fourth Proportional to 9,744,978.72, 13,447,767.60 and 5,615,017.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,744,978.72 : 13,447,767.60 = 5,615,017.68 : x
2. Step 2: Convert to fraction form
   9,744,978.72/13,447,767.60 = 5,615,017.68/x
3. Step 3: Cross multiply
   9,744,978.72x = 13,447,767.60 × 5,615,017.68
4. Step 4: Simplify right side
   9,744,978.72x = 75,509,452,830,531.16
5. Step 5: Solve for x
   x = 75,509,452,830,531.16/9,744,978.72
6. Step 6: Final answer
   x = 7,748,549.79