Finding the Fourth Proportional to 20,799,061.76, 28,709,919.43 and 14,294,223.92

Step by Step Solution

1. Step 1: Write the proportion equation
   20,799,061.76 : 28,709,919.43 = 14,294,223.92 : x
2. Step 2: Convert to fraction form
   20,799,061.76/28,709,919.43 = 14,294,223.92/x
3. Step 3: Cross multiply
   20,799,061.76x = 28,709,919.43 × 14,294,223.92
4. Step 4: Simplify right side
   20,799,061.76x = 410,386,017,093,617.94
5. Step 5: Solve for x
   x = 410,386,017,093,617.94/20,799,061.76
6. Step 6: Final answer
   x = 19,730,986.99