Finding the Fourth Proportional to 10,620.24, 14,641.27 and 8,474.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.24 : 14,641.27 = 8,474.07 : x
2. Step 2: Convert to fraction form
   10,620.24/14,641.27 = 8,474.07/x
3. Step 3: Cross multiply
   10,620.24x = 14,641.27 × 8,474.07
4. Step 4: Simplify right side
   10,620.24x = 124,071,146.87
5. Step 5: Solve for x
   x = 124,071,146.87/10,620.24
6. Step 6: Final answer
   x = 11,682.52