Finding the Fourth Proportional to 10,500.54, 14,490.54 and 5,784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,500.54 : 14,490.54 = 5,784.72 : x
2. Step 2: Convert to fraction form
   10,500.54/14,490.54 = 5,784.72/x
3. Step 3: Cross multiply
   10,500.54x = 14,490.54 × 5,784.72
4. Step 4: Simplify right side
   10,500.54x = 83,823,716.55
5. Step 5: Solve for x
   x = 83,823,716.55/10,500.54
6. Step 6: Final answer
   x = 7,982.80