Finding the Fourth Proportional to 11,748.37, 17,619.08 and 3,426.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.37 : 17,619.08 = 3,426.15 : x
2. Step 2: Convert to fraction form
   11,748.37/17,619.08 = 3,426.15/x
3. Step 3: Cross multiply
   11,748.37x = 17,619.08 × 3,426.15
4. Step 4: Simplify right side
   11,748.37x = 60,365,619.51
5. Step 5: Solve for x
   x = 60,365,619.51/11,748.37
6. Step 6: Final answer
   x = 5,138.21