Finding the Fourth Proportional to 13,095.10, 18,071.30 and 7,126.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,095.10 : 18,071.30 = 7,126.72 : x
2. Step 2: Convert to fraction form
   13,095.10/18,071.30 = 7,126.72/x
3. Step 3: Cross multiply
   13,095.10x = 18,071.30 × 7,126.72
4. Step 4: Simplify right side
   13,095.10x = 128,789,095.14
5. Step 5: Solve for x
   x = 128,789,095.14/13,095.10
6. Step 6: Final answer
   x = 9,834.91