Finding the Fourth Proportional to 22,698.18, 31,321.35 and 21,026.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,698.18 : 31,321.35 = 21,026.34 : x
2. Step 2: Convert to fraction form
   22,698.18/31,321.35 = 21,026.34/x
3. Step 3: Cross multiply
   22,698.18x = 31,321.35 × 21,026.34
4. Step 4: Simplify right side
   22,698.18x = 658,573,354.36
5. Step 5: Solve for x
   x = 658,573,354.36/22,698.18
6. Step 6: Final answer
   x = 29,014.37