Finding the Fourth Proportional to 31,376, 43,296.72 and 17,225.92

Step by Step Solution

1. Step 1: Write the proportion equation
   31,376 : 43,296.72 = 17,225.92 : x
2. Step 2: Convert to fraction form
   31,376/43,296.72 = 17,225.92/x
3. Step 3: Cross multiply
   31,376x = 43,296.72 × 17,225.92
4. Step 4: Simplify right side
   31,376x = 745,825,834.98
5. Step 5: Solve for x
   x = 745,825,834.98/31,376
6. Step 6: Final answer
   x = 23,770.58