Finding the Fourth Proportional to 10,398,915.60, 14,354,111.16 and 7,146,496.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,398,915.60 : 14,354,111.16 = 7,146,496.68 : x
2. Step 2: Convert to fraction form
   10,398,915.60/14,354,111.16 = 7,146,496.68/x
3. Step 3: Cross multiply
   10,398,915.60x = 14,354,111.16 × 7,146,496.68
4. Step 4: Simplify right side
   10,398,915.60x = 102,581,607,749,290.95
5. Step 5: Solve for x
   x = 102,581,607,749,290.95/10,398,915.60
6. Step 6: Final answer
   x = 9,864,644.71