Finding the Fourth Proportional to 13,080.78, 18,050.04 and 7,415.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,080.78 : 18,050.04 = 7,415.10 : x
2. Step 2: Convert to fraction form
   13,080.78/18,050.04 = 7,415.10/x
3. Step 3: Cross multiply
   13,080.78x = 18,050.04 × 7,415.10
4. Step 4: Simplify right side
   13,080.78x = 133,842,851.60
5. Step 5: Solve for x
   x = 133,842,851.60/13,080.78
6. Step 6: Final answer
   x = 10,232.02