Finding the Fourth Proportional to 10,499.93, 14,489.89 and 5,784.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.93 : 14,489.89 = 5,784.21 : x
2. Step 2: Convert to fraction form
   10,499.93/14,489.89 = 5,784.21/x
3. Step 3: Cross multiply
   10,499.93x = 14,489.89 × 5,784.21
4. Step 4: Simplify right side
   10,499.93x = 83,812,552.18
5. Step 5: Solve for x
   x = 83,812,552.18/10,499.93
6. Step 6: Final answer
   x = 7,982.20