Finding the Fourth Proportional to 13,487.29, 18,612.50 and 7,518.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,487.29 : 18,612.50 = 7,518.83 : x
2. Step 2: Convert to fraction form
   13,487.29/18,612.50 = 7,518.83/x
3. Step 3: Cross multiply
   13,487.29x = 18,612.50 × 7,518.83
4. Step 4: Simplify right side
   13,487.29x = 139,944,092.72
5. Step 5: Solve for x
   x = 139,944,092.72/13,487.29
6. Step 6: Final answer
   x = 10,376.00