Finding the Fourth Proportional to 22,886.58, 34,158.28 and 21,391.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,886.58 : 34,158.28 = 21,391.91 : x
2. Step 2: Convert to fraction form
   22,886.58/34,158.28 = 21,391.91/x
3. Step 3: Cross multiply
   22,886.58x = 34,158.28 × 21,391.91
4. Step 4: Simplify right side
   22,886.58x = 730,710,680.72
5. Step 5: Solve for x
   x = 730,710,680.72/22,886.58
6. Step 6: Final answer
   x = 31,927.47