Finding the Fourth Proportional to 10,085.56, 15,130.62 and 3,160.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,085.56 : 15,130.62 = 3,160.12 : x
2. Step 2: Convert to fraction form
   10,085.56/15,130.62 = 3,160.12/x
3. Step 3: Cross multiply
   10,085.56x = 15,130.62 × 3,160.12
4. Step 4: Simplify right side
   10,085.56x = 47,814,574.87
5. Step 5: Solve for x
   x = 47,814,574.87/10,085.56
6. Step 6: Final answer
   x = 4,740.89