Finding the Fourth Proportional to 72,301.33, 108,467.86 and 21,698.20

Step by Step Solution

1. Step 1: Write the proportion equation
   72,301.33 : 108,467.86 = 21,698.20 : x
2. Step 2: Convert to fraction form
   72,301.33/108,467.86 = 21,698.20/x
3. Step 3: Cross multiply
   72,301.33x = 108,467.86 × 21,698.20
4. Step 4: Simplify right side
   72,301.33x = 2,353,557,319.85
5. Step 5: Solve for x
   x = 2,353,557,319.85/72,301.33
6. Step 6: Final answer
   x = 32,552.06