Finding the Fourth Proportional to 21,951.81, 32,928.51 and 10,261.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,951.81 : 32,928.51 = 10,261.89 : x
2. Step 2: Convert to fraction form
   21,951.81/32,928.51 = 10,261.89/x
3. Step 3: Cross multiply
   21,951.81x = 32,928.51 × 10,261.89
4. Step 4: Simplify right side
   21,951.81x = 337,908,747.48
5. Step 5: Solve for x
   x = 337,908,747.48/21,951.81
6. Step 6: Final answer
   x = 15,393.21