Finding the Fourth Proportional to 11,638.74, 17,460.84 and 3,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,638.74 : 17,460.84 = 3,847.50 : x
2. Step 2: Convert to fraction form
   11,638.74/17,460.84 = 3,847.50/x
3. Step 3: Cross multiply
   11,638.74x = 17,460.84 × 3,847.50
4. Step 4: Simplify right side
   11,638.74x = 67,180,581.90
5. Step 5: Solve for x
   x = 67,180,581.90/11,638.74
6. Step 6: Final answer
   x = 5,772.15