Finding the Fourth Proportional to 12,493.10, 18,730.37 and 7,561.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,493.10 : 18,730.37 = 7,561.58 : x
2. Step 2: Convert to fraction form
   12,493.10/18,730.37 = 7,561.58/x
3. Step 3: Cross multiply
   12,493.10x = 18,730.37 × 7,561.58
4. Step 4: Simplify right side
   12,493.10x = 141,631,116.44
5. Step 5: Solve for x
   x = 141,631,116.44/12,493.10
6. Step 6: Final answer
   x = 11,336.75