Finding the Fourth Proportional to 9,049,198.25, 12,488,152.05 and 5,517,198.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,049,198.25 : 12,488,152.05 = 5,517,198.72 : x
2. Step 2: Convert to fraction form
   9,049,198.25/12,488,152.05 = 5,517,198.72/x
3. Step 3: Cross multiply
   9,049,198.25x = 12,488,152.05 × 5,517,198.72
4. Step 4: Simplify right side
   9,049,198.25x = 68,899,616,505,425.38
5. Step 5: Solve for x
   x = 68,899,616,505,425.38/9,049,198.25
6. Step 6: Final answer
   x = 7,613,891.81