Finding the Fourth Proportional to 31,664.76, 47,477.94 and 21,793.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,664.76 : 47,477.94 = 21,793.20 : x
2. Step 2: Convert to fraction form
   31,664.76/47,477.94 = 21,793.20/x
3. Step 3: Cross multiply
   31,664.76x = 47,477.94 × 21,793.20
4. Step 4: Simplify right side
   31,664.76x = 1,034,696,242.01
5. Step 5: Solve for x
   x = 1,034,696,242.01/31,664.76
6. Step 6: Final answer
   x = 32,676.59