Finding the Fourth Proportional to 21,294.63, 31,899.69 and 10,034.55

Step by Step Solution

1. Step 1: Write the proportion equation
   21,294.63 : 31,899.69 = 10,034.55 : x
2. Step 2: Convert to fraction form
   21,294.63/31,899.69 = 10,034.55/x
3. Step 3: Cross multiply
   21,294.63x = 31,899.69 × 10,034.55
4. Step 4: Simplify right side
   21,294.63x = 320,099,034.29
5. Step 5: Solve for x
   x = 320,099,034.29/21,294.63
6. Step 6: Final answer
   x = 15,031.91