Finding the Fourth Proportional to 21,426.76, 32,144.48 and 7,585.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,426.76 : 32,144.48 = 7,585.48 : x
2. Step 2: Convert to fraction form
   21,426.76/32,144.48 = 7,585.48/x
3. Step 3: Cross multiply
   21,426.76x = 32,144.48 × 7,585.48
4. Step 4: Simplify right side
   21,426.76x = 243,831,310.15
5. Step 5: Solve for x
   x = 243,831,310.15/21,426.76
6. Step 6: Final answer
   x = 11,379.76