Finding the Fourth Proportional to 9,142,088.97, 12,616,185.20 and 5,222,363.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142,088.97 : 12,616,185.20 = 5,222,363.97 : x
2. Step 2: Convert to fraction form
   9,142,088.97/12,616,185.20 = 5,222,363.97/x
3. Step 3: Cross multiply
   9,142,088.97x = 12,616,185.20 × 5,222,363.97
4. Step 4: Simplify right side
   9,142,088.97x = 65,886,311,001,215.42
5. Step 5: Solve for x
   x = 65,886,311,001,215.42/9,142,088.97
6. Step 6: Final answer
   x = 7,206,920.78