Finding the Fourth Proportional to 22,665,724.87, 31,274,870.86 and 12,741,285.63

Step by Step Solution

1. Step 1: Write the proportion equation
   22,665,724.87 : 31,274,870.86 = 12,741,285.63 : x
2. Step 2: Convert to fraction form
   22,665,724.87/31,274,870.86 = 12,741,285.63/x
3. Step 3: Cross multiply
   22,665,724.87x = 31,274,870.86 × 12,741,285.63
4. Step 4: Simplify right side
   22,665,724.87x = 398,482,062,668,623.75
5. Step 5: Solve for x
   x = 398,482,062,668,623.75/22,665,724.87
6. Step 6: Final answer
   x = 17,580,821.48