Finding the Fourth Proportional to 13,978,616.32, 19,296,442.56 and 9,397,594.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,978,616.32 : 19,296,442.56 = 9,397,594.72 : x
2. Step 2: Convert to fraction form
   13,978,616.32/19,296,442.56 = 9,397,594.72/x
3. Step 3: Cross multiply
   13,978,616.32x = 19,296,442.56 × 9,397,594.72
4. Step 4: Simplify right side
   13,978,616.32x = 181,340,146,716,639.28
5. Step 5: Solve for x
   x = 181,340,146,716,639.28/13,978,616.32
6. Step 6: Final answer
   x = 12,972,682.17