Finding the Fourth Proportional to 13,271.57, 19,898.13 and 5,871.99

Step by Step Solution

1. Step 1: Write the proportion equation
   13,271.57 : 19,898.13 = 5,871.99 : x
2. Step 2: Convert to fraction form
   13,271.57/19,898.13 = 5,871.99/x
3. Step 3: Cross multiply
   13,271.57x = 19,898.13 × 5,871.99
4. Step 4: Simplify right side
   13,271.57x = 116,841,620.38
5. Step 5: Solve for x
   x = 116,841,620.38/13,271.57
6. Step 6: Final answer
   x = 8,803.90