Finding the Fourth Proportional to 9,359,468.76, 12,914,879.56 and 5,490,578.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,359,468.76 : 12,914,879.56 = 5,490,578.28 : x
2. Step 2: Convert to fraction form
   9,359,468.76/12,914,879.56 = 5,490,578.28/x
3. Step 3: Cross multiply
   9,359,468.76x = 12,914,879.56 × 5,490,578.28
4. Step 4: Simplify right side
   9,359,468.76x = 70,910,157,200,951.97
5. Step 5: Solve for x
   x = 70,910,157,200,951.97/9,359,468.76
6. Step 6: Final answer
   x = 7,576,301.50