Finding the Fourth Proportional to 21,835.98, 32,773.41 and 10,155.78

Step by Step Solution

1. Step 1: Write the proportion equation
   21,835.98 : 32,773.41 = 10,155.78 : x
2. Step 2: Convert to fraction form
   21,835.98/32,773.41 = 10,155.78/x
3. Step 3: Cross multiply
   21,835.98x = 32,773.41 × 10,155.78
4. Step 4: Simplify right side
   21,835.98x = 332,839,541.81
5. Step 5: Solve for x
   x = 332,839,541.81/21,835.98
6. Step 6: Final answer
   x = 15,242.71