Finding the Fourth Proportional to 21,184.69, 31,756.37 and 10,088.39

Step by Step Solution

1. Step 1: Write the proportion equation
   21,184.69 : 31,756.37 = 10,088.39 : x
2. Step 2: Convert to fraction form
   21,184.69/31,756.37 = 10,088.39/x
3. Step 3: Cross multiply
   21,184.69x = 31,756.37 × 10,088.39
4. Step 4: Simplify right side
   21,184.69x = 320,370,595.10
5. Step 5: Solve for x
   x = 320,370,595.10/21,184.69
6. Step 6: Final answer
   x = 15,122.74