Finding the Fourth Proportional to 12,464.88, 18,697.86 and 3,699.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,464.88 : 18,697.86 = 3,699.60 : x
2. Step 2: Convert to fraction form
   12,464.88/18,697.86 = 3,699.60/x
3. Step 3: Cross multiply
   12,464.88x = 18,697.86 × 3,699.60
4. Step 4: Simplify right side
   12,464.88x = 69,174,602.86
5. Step 5: Solve for x
   x = 69,174,602.86/12,464.88
6. Step 6: Final answer
   x = 5,549.56