Finding the Fourth Proportional to 12,495.57, 18,734.10 and 7,564.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,495.57 : 18,734.10 = 7,564.04 : x
2. Step 2: Convert to fraction form
   12,495.57/18,734.10 = 7,564.04/x
3. Step 3: Cross multiply
   12,495.57x = 18,734.10 × 7,564.04
4. Step 4: Simplify right side
   12,495.57x = 141,705,500.23
5. Step 5: Solve for x
   x = 141,705,500.23/12,495.57
6. Step 6: Final answer
   x = 11,340.46