Finding the Fourth Proportional to 10,537.59, 15,810.63 and 4,690.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,537.59 : 15,810.63 = 4,690.20 : x
2. Step 2: Convert to fraction form
   10,537.59/15,810.63 = 4,690.20/x
3. Step 3: Cross multiply
   10,537.59x = 15,810.63 × 4,690.20
4. Step 4: Simplify right side
   10,537.59x = 74,155,016.83
5. Step 5: Solve for x
   x = 74,155,016.83/10,537.59
6. Step 6: Final answer
   x = 7,037.19