Finding the Fourth Proportional to 23,487.21, 32,213.90 and 22,216.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,487.21 : 32,213.90 = 22,216.32 : x
2. Step 2: Convert to fraction form
   23,487.21/32,213.90 = 22,216.32/x
3. Step 3: Cross multiply
   23,487.21x = 32,213.90 × 22,216.32
4. Step 4: Simplify right side
   23,487.21x = 715,674,199.77
5. Step 5: Solve for x
   x = 715,674,199.77/23,487.21
6. Step 6: Final answer
   x = 30,470.81