Finding the Fourth Proportional to 32,229.82, 48,320.42 and 21,139.30

Step by Step Solution

1. Step 1: Write the proportion equation
   32,229.82 : 48,320.42 = 21,139.30 : x
2. Step 2: Convert to fraction form
   32,229.82/48,320.42 = 21,139.30/x
3. Step 3: Cross multiply
   32,229.82x = 48,320.42 × 21,139.30
4. Step 4: Simplify right side
   32,229.82x = 1,021,459,854.51
5. Step 5: Solve for x
   x = 1,021,459,854.51/32,229.82
6. Step 6: Final answer
   x = 31,693.01