Finding the Fourth Proportional to 12,010.10, 18,058.35 and 10,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,010.10 : 18,058.35 = 10,109.30 : x
2. Step 2: Convert to fraction form
   12,010.10/18,058.35 = 10,109.30/x
3. Step 3: Cross multiply
   12,010.10x = 18,058.35 × 10,109.30
4. Step 4: Simplify right side
   12,010.10x = 182,557,277.66
5. Step 5: Solve for x
   x = 182,557,277.66/12,010.10
6. Step 6: Final answer
   x = 15,200.31