Finding the Fourth Proportional to 21,441.71, 32,164.74 and 7,399.91

Step by Step Solution

1. Step 1: Write the proportion equation
   21,441.71 : 32,164.74 = 7,399.91 : x
2. Step 2: Convert to fraction form
   21,441.71/32,164.74 = 7,399.91/x
3. Step 3: Cross multiply
   21,441.71x = 32,164.74 × 7,399.91
4. Step 4: Simplify right side
   21,441.71x = 238,016,020.35
5. Step 5: Solve for x
   x = 238,016,020.35/21,441.71
6. Step 6: Final answer
   x = 11,100.61