Finding the Fourth Proportional to 10,085, 15,128.04 and 3,160.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085 : 15,128.04 = 3,160.04 : x
2. Step 2: Convert to fraction form
   10,085/15,128.04 = 3,160.04/x
3. Step 3: Cross multiply
   10,085x = 15,128.04 × 3,160.04
4. Step 4: Simplify right side
   10,085x = 47,805,211.52
5. Step 5: Solve for x
   x = 47,805,211.52/10,085
6. Step 6: Final answer
   x = 4,740.23