Finding the Fourth Proportional to 12,400.29, 18,611.37 and 5,010.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,400.29 : 18,611.37 = 5,010.05 : x
2. Step 2: Convert to fraction form
   12,400.29/18,611.37 = 5,010.05/x
3. Step 3: Cross multiply
   12,400.29x = 18,611.37 × 5,010.05
4. Step 4: Simplify right side
   12,400.29x = 93,243,940.80
5. Step 5: Solve for x
   x = 93,243,940.80/12,400.29
6. Step 6: Final answer
   x = 7,519.50