Finding the Fourth Proportional to 22,478,772.71, 31,020,799.84 and 12,165,494.90

Step by Step Solution

1. Step 1: Write the proportion equation
   22,478,772.71 : 31,020,799.84 = 12,165,494.90 : x
2. Step 2: Convert to fraction form
   22,478,772.71/31,020,799.84 = 12,165,494.90/x
3. Step 3: Cross multiply
   22,478,772.71x = 31,020,799.84 × 12,165,494.90
4. Step 4: Simplify right side
   22,478,772.71x = 377,383,382,061,923.06
5. Step 5: Solve for x
   x = 377,383,382,061,923.06/22,478,772.71
6. Step 6: Final answer
   x = 16,788,433.55