Finding the Fourth Proportional to 8,280,608.27, 12,432,113.18 and 5,715,445.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,280,608.27 : 12,432,113.18 = 5,715,445.59 : x
2. Step 2: Convert to fraction form
   8,280,608.27/12,432,113.18 = 5,715,445.59/x
3. Step 3: Cross multiply
   8,280,608.27x = 12,432,113.18 × 5,715,445.59
4. Step 4: Simplify right side
   8,280,608.27x = 71,055,066,441,867.58
5. Step 5: Solve for x
   x = 71,055,066,441,867.58/8,280,608.27
6. Step 6: Final answer
   x = 8,580,899.39