Finding the Fourth Proportional to 21,740.06, 32,588.01 and 12,360.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,740.06 : 32,588.01 = 12,360.69 : x
2. Step 2: Convert to fraction form
   21,740.06/32,588.01 = 12,360.69/x
3. Step 3: Cross multiply
   21,740.06x = 32,588.01 × 12,360.69
4. Step 4: Simplify right side
   21,740.06x = 402,810,289.33
5. Step 5: Solve for x
   x = 402,810,289.33/21,740.06
6. Step 6: Final answer
   x = 18,528.49