Finding the Fourth Proportional to 10,311,229.20, 14,229,721.80 and 5,665,074.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,311,229.20 : 14,229,721.80 = 5,665,074.06 : x
2. Step 2: Convert to fraction form
   10,311,229.20/14,229,721.80 = 5,665,074.06/x
3. Step 3: Cross multiply
   10,311,229.20x = 14,229,721.80 × 5,665,074.06
4. Step 4: Simplify right side
   10,311,229.20x = 80,612,427,850,196.50
5. Step 5: Solve for x
   x = 80,612,427,850,196.50/10,311,229.20
6. Step 6: Final answer
   x = 7,817,926.10