Finding the Fourth Proportional to 12,826.12, 17,700.54 and 7,237

Step by Step Solution

1. Step 1: Write the proportion equation
   12,826.12 : 17,700.54 = 7,237 : x
2. Step 2: Convert to fraction form
   12,826.12/17,700.54 = 7,237/x
3. Step 3: Cross multiply
   12,826.12x = 17,700.54 × 7,237
4. Step 4: Simplify right side
   12,826.12x = 128,098,807.98
5. Step 5: Solve for x
   x = 128,098,807.98/12,826.12
6. Step 6: Final answer
   x = 9,987.34