Finding the Fourth Proportional to 22,762, 31,415.88 and 12,826

Step by Step Solution

1. Step 1: Write the proportion equation
   22,762 : 31,415.88 = 12,826 : x
2. Step 2: Convert to fraction form
   22,762/31,415.88 = 12,826/x
3. Step 3: Cross multiply
   22,762x = 31,415.88 × 12,826
4. Step 4: Simplify right side
   22,762x = 402,940,076.88
5. Step 5: Solve for x
   x = 402,940,076.88/22,762
6. Step 6: Final answer
   x = 17,702.31