Finding the Fourth Proportional to 52,819.62, 79,231.86 and 21,633

Step by Step Solution

1. Step 1: Write the proportion equation
   52,819.62 : 79,231.86 = 21,633 : x
2. Step 2: Convert to fraction form
   52,819.62/79,231.86 = 21,633/x
3. Step 3: Cross multiply
   52,819.62x = 79,231.86 × 21,633
4. Step 4: Simplify right side
   52,819.62x = 1,714,022,827.38
5. Step 5: Solve for x
   x = 1,714,022,827.38/52,819.62
6. Step 6: Final answer
   x = 32,450.50