Finding the Fourth Proportional to 21,951.54, 32,913.63 and 7,158.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,951.54 : 32,913.63 = 7,158.31 : x
2. Step 2: Convert to fraction form
   21,951.54/32,913.63 = 7,158.31/x
3. Step 3: Cross multiply
   21,951.54x = 32,913.63 × 7,158.31
4. Step 4: Simplify right side
   21,951.54x = 235,605,884.48
5. Step 5: Solve for x
   x = 235,605,884.48/21,951.54
6. Step 6: Final answer
   x = 10,733.00