Finding the Fourth Proportional to 10,505.60, 14,497.07 and 5,789.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505.60 : 14,497.07 = 5,789.91 : x
2. Step 2: Convert to fraction form
   10,505.60/14,497.07 = 5,789.91/x
3. Step 3: Cross multiply
   10,505.60x = 14,497.07 × 5,789.91
4. Step 4: Simplify right side
   10,505.60x = 83,936,701.61
5. Step 5: Solve for x
   x = 83,936,701.61/10,505.60
6. Step 6: Final answer
   x = 7,989.71