Finding the Fourth Proportional to 13,081.83, 18,053.06 and 7,416.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.83 : 18,053.06 = 7,416.60 : x
2. Step 2: Convert to fraction form
   13,081.83/18,053.06 = 7,416.60/x
3. Step 3: Cross multiply
   13,081.83x = 18,053.06 × 7,416.60
4. Step 4: Simplify right side
   13,081.83x = 133,892,287.71
5. Step 5: Solve for x
   x = 133,892,287.71/13,081.83
6. Step 6: Final answer
   x = 10,234.98