Finding the Fourth Proportional to 23,490.30, 32,398.06 and 20,804.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,490.30 : 32,398.06 = 20,804.34 : x
2. Step 2: Convert to fraction form
   23,490.30/32,398.06 = 20,804.34/x
3. Step 3: Cross multiply
   23,490.30x = 32,398.06 × 20,804.34
4. Step 4: Simplify right side
   23,490.30x = 674,020,255.58
5. Step 5: Solve for x
   x = 674,020,255.58/23,490.30
6. Step 6: Final answer
   x = 28,693.56