Finding the Fourth Proportional to 10,827.30, 16,238.52 and 4,978.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,827.30 : 16,238.52 = 4,978.29 : x
2. Step 2: Convert to fraction form
   10,827.30/16,238.52 = 4,978.29/x
3. Step 3: Cross multiply
   10,827.30x = 16,238.52 × 4,978.29
4. Step 4: Simplify right side
   10,827.30x = 80,840,061.73
5. Step 5: Solve for x
   x = 80,840,061.73/10,827.30
6. Step 6: Final answer
   x = 7,466.32