Finding the Fourth Proportional to 12,459.15, 18,688.32 and 5,061.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,459.15 : 18,688.32 = 5,061.42 : x
2. Step 2: Convert to fraction form
   12,459.15/18,688.32 = 5,061.42/x
3. Step 3: Cross multiply
   12,459.15x = 18,688.32 × 5,061.42
4. Step 4: Simplify right side
   12,459.15x = 94,589,436.61
5. Step 5: Solve for x
   x = 94,589,436.61/12,459.15
6. Step 6: Final answer
   x = 7,591.97