Finding the Fourth Proportional to 11,009.87, 15,187.27 and 7,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,009.87 : 15,187.27 = 7,026.50 : x
2. Step 2: Convert to fraction form
   11,009.87/15,187.27 = 7,026.50/x
3. Step 3: Cross multiply
   11,009.87x = 15,187.27 × 7,026.50
4. Step 4: Simplify right side
   11,009.87x = 106,713,320.57
5. Step 5: Solve for x
   x = 106,713,320.57/11,009.87
6. Step 6: Final answer
   x = 9,692.51