Finding the Fourth Proportional to 10,499.31, 14,488.88 and 5,784.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.31 : 14,488.88 = 5,784.03 : x
2. Step 2: Convert to fraction form
   10,499.31/14,488.88 = 5,784.03/x
3. Step 3: Cross multiply
   10,499.31x = 14,488.88 × 5,784.03
4. Step 4: Simplify right side
   10,499.31x = 83,804,087.67
5. Step 5: Solve for x
   x = 83,804,087.67/10,499.31
6. Step 6: Final answer
   x = 7,981.87