Finding the Fourth Proportional to 10,422.02, 14,382.27 and 5,641.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.02 : 14,382.27 = 5,641.88 : x
2. Step 2: Convert to fraction form
   10,422.02/14,382.27 = 5,641.88/x
3. Step 3: Cross multiply
   10,422.02x = 14,382.27 × 5,641.88
4. Step 4: Simplify right side
   10,422.02x = 81,142,990.71
5. Step 5: Solve for x
   x = 81,142,990.71/10,422.02
6. Step 6: Final answer
   x = 7,785.73