Finding the Fourth Proportional to 21,470.23, 32,181.71 and 16,188.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,470.23 : 32,181.71 = 16,188.31 : x
2. Step 2: Convert to fraction form
   21,470.23/32,181.71 = 16,188.31/x
3. Step 3: Cross multiply
   21,470.23x = 32,181.71 × 16,188.31
4. Step 4: Simplify right side
   21,470.23x = 520,967,301.53
5. Step 5: Solve for x
   x = 520,967,301.53/21,470.23
6. Step 6: Final answer
   x = 24,264.63