Finding the Fourth Proportional to 12,030.31, 18,039.75 and 7,034.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,030.31 : 18,039.75 = 7,034.10 : x
2. Step 2: Convert to fraction form
   12,030.31/18,039.75 = 7,034.10/x
3. Step 3: Cross multiply
   12,030.31x = 18,039.75 × 7,034.10
4. Step 4: Simplify right side
   12,030.31x = 126,893,405.48
5. Step 5: Solve for x
   x = 126,893,405.48/12,030.31
6. Step 6: Final answer
   x = 10,547.81