Finding the Fourth Proportional to 9,078,387.57, 13,614,924.15 and 7,476,978.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078,387.57 : 13,614,924.15 = 7,476,978.69 : x
2. Step 2: Convert to fraction form
   9,078,387.57/13,614,924.15 = 7,476,978.69/x
3. Step 3: Cross multiply
   9,078,387.57x = 13,614,924.15 × 7,476,978.69
4. Step 4: Simplify right side
   9,078,387.57x = 101,798,497,735,516.38
5. Step 5: Solve for x
   x = 101,798,497,735,516.38/9,078,387.57
6. Step 6: Final answer
   x = 11,213,279.56