Finding the Fourth Proportional to 10,642.60, 14,687.12 and 5,862.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,642.60 : 14,687.12 = 5,862.89 : x
2. Step 2: Convert to fraction form
   10,642.60/14,687.12 = 5,862.89/x
3. Step 3: Cross multiply
   10,642.60x = 14,687.12 × 5,862.89
4. Step 4: Simplify right side
   10,642.60x = 86,108,866.23
5. Step 5: Solve for x
   x = 86,108,866.23/10,642.60
6. Step 6: Final answer
   x = 8,090.97