Finding the Fourth Proportional to 10,403.48, 14,356.86 and 5,687.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,403.48 : 14,356.86 = 5,687.76 : x
2. Step 2: Convert to fraction form
   10,403.48/14,356.86 = 5,687.76/x
3. Step 3: Cross multiply
   10,403.48x = 14,356.86 × 5,687.76
4. Step 4: Simplify right side
   10,403.48x = 81,658,374.03
5. Step 5: Solve for x
   x = 81,658,374.03/10,403.48
6. Step 6: Final answer
   x = 7,849.14