Finding the Fourth Proportional to 13,561.56, 20,339.61 and 3,700.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,561.56 : 20,339.61 = 3,700.01 : x
2. Step 2: Convert to fraction form
   13,561.56/20,339.61 = 3,700.01/x
3. Step 3: Cross multiply
   13,561.56x = 20,339.61 × 3,700.01
4. Step 4: Simplify right side
   13,561.56x = 75,256,797.37
5. Step 5: Solve for x
   x = 75,256,797.37/13,561.56
6. Step 6: Final answer
   x = 5,549.27