Finding the Fourth Proportional to 31,100.58, 46,632.92 and 21,251.79

Step by Step Solution

1. Step 1: Write the proportion equation
   31,100.58 : 46,632.92 = 21,251.79 : x
2. Step 2: Convert to fraction form
   31,100.58/46,632.92 = 21,251.79/x
3. Step 3: Cross multiply
   31,100.58x = 46,632.92 × 21,251.79
4. Step 4: Simplify right side
   31,100.58x = 991,032,916.67
5. Step 5: Solve for x
   x = 991,032,916.67/31,100.58
6. Step 6: Final answer
   x = 31,865.42