Finding the Fourth Proportional to 21,440.52, 32,152.56 and 7,405.44

Step by Step Solution

1. Step 1: Write the proportion equation
   21,440.52 : 32,152.56 = 7,405.44 : x
2. Step 2: Convert to fraction form
   21,440.52/32,152.56 = 7,405.44/x
3. Step 3: Cross multiply
   21,440.52x = 32,152.56 × 7,405.44
4. Step 4: Simplify right side
   21,440.52x = 238,103,853.93
5. Step 5: Solve for x
   x = 238,103,853.93/21,440.52
6. Step 6: Final answer
   x = 11,105.32