Finding the Fourth Proportional to 32,854.71, 45,359.60 and 21,380.56

Step by Step Solution

1. Step 1: Write the proportion equation
   32,854.71 : 45,359.60 = 21,380.56 : x
2. Step 2: Convert to fraction form
   32,854.71/45,359.60 = 21,380.56/x
3. Step 3: Cross multiply
   32,854.71x = 45,359.60 × 21,380.56
4. Step 4: Simplify right side
   32,854.71x = 969,813,429.07
5. Step 5: Solve for x
   x = 969,813,429.07/32,854.71
6. Step 6: Final answer
   x = 29,518.24