Finding the Fourth Proportional to 32,427.50, 48,578.31 and 21,300.43

Step by Step Solution

1. Step 1: Write the proportion equation
   32,427.50 : 48,578.31 = 21,300.43 : x
2. Step 2: Convert to fraction form
   32,427.50/48,578.31 = 21,300.43/x
3. Step 3: Cross multiply
   32,427.50x = 48,578.31 × 21,300.43
4. Step 4: Simplify right side
   32,427.50x = 1,034,738,648.78
5. Step 5: Solve for x
   x = 1,034,738,648.78/32,427.50
6. Step 6: Final answer
   x = 31,909.29