Finding the Fourth Proportional to 21,444.71, 32,171.37 and 7,405.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,444.71 : 32,171.37 = 7,405.25 : x
2. Step 2: Convert to fraction form
   21,444.71/32,171.37 = 7,405.25/x
3. Step 3: Cross multiply
   21,444.71x = 32,171.37 × 7,405.25
4. Step 4: Simplify right side
   21,444.71x = 238,237,156.15
5. Step 5: Solve for x
   x = 238,237,156.15/21,444.71
6. Step 6: Final answer
   x = 11,109.37