Finding the Fourth Proportional to 13,051.98, 18,011.82 and 7,083.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,051.98 : 18,011.82 = 7,083.72 : x
2. Step 2: Convert to fraction form
   13,051.98/18,011.82 = 7,083.72/x
3. Step 3: Cross multiply
   13,051.98x = 18,011.82 × 7,083.72
4. Step 4: Simplify right side
   13,051.98x = 127,590,689.57
5. Step 5: Solve for x
   x = 127,590,689.57/13,051.98
6. Step 6: Final answer
   x = 9,775.58