Finding the Fourth Proportional to 21,340.94, 32,004.48 and 7,105.61

Step by Step Solution

1. Step 1: Write the proportion equation
   21,340.94 : 32,004.48 = 7,105.61 : x
2. Step 2: Convert to fraction form
   21,340.94/32,004.48 = 7,105.61/x
3. Step 3: Cross multiply
   21,340.94x = 32,004.48 × 7,105.61
4. Step 4: Simplify right side
   21,340.94x = 227,411,459.79
5. Step 5: Solve for x
   x = 227,411,459.79/21,340.94
6. Step 6: Final answer
   x = 10,656.12