Finding the Fourth Proportional to 21,444.96, 32,171.74 and 7,405.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,444.96 : 32,171.74 = 7,405.51 : x
2. Step 2: Convert to fraction form
   21,444.96/32,171.74 = 7,405.51/x
3. Step 3: Cross multiply
   21,444.96x = 32,171.74 × 7,405.51
4. Step 4: Simplify right side
   21,444.96x = 238,247,999.94
5. Step 5: Solve for x
   x = 238,247,999.94/21,444.96
6. Step 6: Final answer
   x = 11,109.74