Finding the Fourth Proportional to 17,498.15, 26,258.12 and 7,109.90

Step by Step Solution

1. Step 1: Write the proportion equation
   17,498.15 : 26,258.12 = 7,109.90 : x
2. Step 2: Convert to fraction form
   17,498.15/26,258.12 = 7,109.90/x
3. Step 3: Cross multiply
   17,498.15x = 26,258.12 × 7,109.90
4. Step 4: Simplify right side
   17,498.15x = 186,692,713.38
5. Step 5: Solve for x
   x = 186,692,713.38/17,498.15
6. Step 6: Final answer
   x = 10,669.28