Finding the Fourth Proportional to 21,444.66, 32,169.15 and 7,404.30

Step by Step Solution

1. Step 1: Write the proportion equation
   21,444.66 : 32,169.15 = 7,404.30 : x
2. Step 2: Convert to fraction form
   21,444.66/32,169.15 = 7,404.30/x
3. Step 3: Cross multiply
   21,444.66x = 32,169.15 × 7,404.30
4. Step 4: Simplify right side
   21,444.66x = 238,190,037.35
5. Step 5: Solve for x
   x = 238,190,037.35/21,444.66
6. Step 6: Final answer
   x = 11,107.20