Finding the Fourth Proportional to 17,766.18, 26,665.47 and 7,903.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,766.18 : 26,665.47 = 7,903.62 : x
2. Step 2: Convert to fraction form
   17,766.18/26,665.47 = 7,903.62/x
3. Step 3: Cross multiply
   17,766.18x = 26,665.47 × 7,903.62
4. Step 4: Simplify right side
   17,766.18x = 210,753,742.00
5. Step 5: Solve for x
   x = 210,753,742.00/17,766.18
6. Step 6: Final answer
   x = 11,862.64