Finding the Fourth Proportional to 11,570.55, 17,356.50 and 3,251.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,570.55 : 17,356.50 = 3,251.21 : x
2. Step 2: Convert to fraction form
   11,570.55/17,356.50 = 3,251.21/x
3. Step 3: Cross multiply
   11,570.55x = 17,356.50 × 3,251.21
4. Step 4: Simplify right side
   11,570.55x = 56,429,653.50
5. Step 5: Solve for x
   x = 56,429,653.50/11,570.55
6. Step 6: Final answer
   x = 4,877.01