Finding the Fourth Proportional to 17,587.02, 26,391.34 and 7,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,587.02 : 26,391.34 = 7,198.50 : x
2. Step 2: Convert to fraction form
   17,587.02/26,391.34 = 7,198.50/x
3. Step 3: Cross multiply
   17,587.02x = 26,391.34 × 7,198.50
4. Step 4: Simplify right side
   17,587.02x = 189,978,060.99
5. Step 5: Solve for x
   x = 189,978,060.99/17,587.02
6. Step 6: Final answer
   x = 10,802.17