Finding the Fourth Proportional to 9,968,128.56, 13,756,023.24 and 5,384,449.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,968,128.56 : 13,756,023.24 = 5,384,449.68 : x
2. Step 2: Convert to fraction form
   9,968,128.56/13,756,023.24 = 5,384,449.68/x
3. Step 3: Cross multiply
   9,968,128.56x = 13,756,023.24 × 5,384,449.68
4. Step 4: Simplify right side
   9,968,128.56x = 74,068,614,932,690.56
5. Step 5: Solve for x
   x = 74,068,614,932,690.56/9,968,128.56
6. Step 6: Final answer
   x = 7,430,543.71