Finding the Fourth Proportional to 12,221,001.56, 18,307,291.71 and 8,373,368.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,221,001.56 : 18,307,291.71 = 8,373,368.72 : x
2. Step 2: Convert to fraction form
   12,221,001.56/18,307,291.71 = 8,373,368.72/x
3. Step 3: Cross multiply
   12,221,001.56x = 18,307,291.71 × 8,373,368.72
4. Step 4: Simplify right side
   12,221,001.56x = 153,293,703,752,429.31
5. Step 5: Solve for x
   x = 153,293,703,752,429.31/12,221,001.56
6. Step 6: Final answer
   x = 12,543,464.87