Finding the Fourth Proportional to 10,865,464.10, 16,298,196.15 and 8,346,040.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,865,464.10 : 16,298,196.15 = 8,346,040.10 : x
2. Step 2: Convert to fraction form
   10,865,464.10/16,298,196.15 = 8,346,040.10/x
3. Step 3: Cross multiply
   10,865,464.10x = 16,298,196.15 × 8,346,040.10
4. Step 4: Simplify right side
   10,865,464.10x = 136,025,398,625,565.61
5. Step 5: Solve for x
   x = 136,025,398,625,565.61/10,865,464.10
6. Step 6: Final answer
   x = 12,519,060.15