Finding the Fourth Proportional to 8,988.52, 13,483.42 and 3,146.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,988.52 : 13,483.42 = 3,146.60 : x
2. Step 2: Convert to fraction form
   8,988.52/13,483.42 = 3,146.60/x
3. Step 3: Cross multiply
   8,988.52x = 13,483.42 × 3,146.60
4. Step 4: Simplify right side
   8,988.52x = 42,426,929.37
5. Step 5: Solve for x
   x = 42,426,929.37/8,988.52
6. Step 6: Final answer
   x = 4,720.12