Finding the Fourth Proportional to 19,900.76, 29,826.50 and 17,440.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900.76 : 29,826.50 = 17,440.38 : x
2. Step 2: Convert to fraction form
   19,900.76/29,826.50 = 17,440.38/x
3. Step 3: Cross multiply
   19,900.76x = 29,826.50 × 17,440.38
4. Step 4: Simplify right side
   19,900.76x = 520,185,406.87
5. Step 5: Solve for x
   x = 520,185,406.87/19,900.76
6. Step 6: Final answer
   x = 26,138.98