Finding the Fourth Proportional to 13,050.99, 18,010.31 and 7,082.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,050.99 : 18,010.31 = 7,082.55 : x
2. Step 2: Convert to fraction form
   13,050.99/18,010.31 = 7,082.55/x
3. Step 3: Cross multiply
   13,050.99x = 18,010.31 × 7,082.55
4. Step 4: Simplify right side
   13,050.99x = 127,558,921.09
5. Step 5: Solve for x
   x = 127,558,921.09/13,050.99
6. Step 6: Final answer
   x = 9,773.89