Finding the Fourth Proportional to 11,559.99, 17,345.25 and 4,898.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,559.99 : 17,345.25 = 4,898.31 : x
2. Step 2: Convert to fraction form
   11,559.99/17,345.25 = 4,898.31/x
3. Step 3: Cross multiply
   11,559.99x = 17,345.25 × 4,898.31
4. Step 4: Simplify right side
   11,559.99x = 84,962,411.53
5. Step 5: Solve for x
   x = 84,962,411.53/11,559.99
6. Step 6: Final answer
   x = 7,349.70