Finding the Fourth Proportional to 34,013.79, 46,920.42 and 21,726.18

Step by Step Solution

1. Step 1: Write the proportion equation
   34,013.79 : 46,920.42 = 21,726.18 : x
2. Step 2: Convert to fraction form
   34,013.79/46,920.42 = 21,726.18/x
3. Step 3: Cross multiply
   34,013.79x = 46,920.42 × 21,726.18
4. Step 4: Simplify right side
   34,013.79x = 1,019,401,490.60
5. Step 5: Solve for x
   x = 1,019,401,490.60/34,013.79
6. Step 6: Final answer
   x = 29,970.24