Finding the Fourth Proportional to 23,401.80, 32,228.82 and 21,900.87

Step by Step Solution

1. Step 1: Write the proportion equation
   23,401.80 : 32,228.82 = 21,900.87 : x
2. Step 2: Convert to fraction form
   23,401.80/32,228.82 = 21,900.87/x
3. Step 3: Cross multiply
   23,401.80x = 32,228.82 × 21,900.87
4. Step 4: Simplify right side
   23,401.80x = 705,839,197.07
5. Step 5: Solve for x
   x = 705,839,197.07/23,401.80
6. Step 6: Final answer
   x = 30,161.75