Finding the Fourth Proportional to 11,898.55, 17,846.47 and 3,134.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,898.55 : 17,846.47 = 3,134.15 : x
2. Step 2: Convert to fraction form
   11,898.55/17,846.47 = 3,134.15/x
3. Step 3: Cross multiply
   11,898.55x = 17,846.47 × 3,134.15
4. Step 4: Simplify right side
   11,898.55x = 55,933,513.95
5. Step 5: Solve for x
   x = 55,933,513.95/11,898.55
6. Step 6: Final answer
   x = 4,700.87