Finding the Fourth Proportional to 13,078.08, 19,623.96 and 7,159.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,078.08 : 19,623.96 = 7,159.23 : x
2. Step 2: Convert to fraction form
   13,078.08/19,623.96 = 7,159.23/x
3. Step 3: Cross multiply
   13,078.08x = 19,623.96 × 7,159.23
4. Step 4: Simplify right side
   13,078.08x = 140,492,443.15
5. Step 5: Solve for x
   x = 140,492,443.15/13,078.08
6. Step 6: Final answer
   x = 10,742.59