Finding the Fourth Proportional to 13,156.92, 19,738.62 and 5,364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,156.92 : 19,738.62 = 5,364.72 : x
2. Step 2: Convert to fraction form
   13,156.92/19,738.62 = 5,364.72/x
3. Step 3: Cross multiply
   13,156.92x = 19,738.62 × 5,364.72
4. Step 4: Simplify right side
   13,156.92x = 105,892,169.49
5. Step 5: Solve for x
   x = 105,892,169.49/13,156.92
6. Step 6: Final answer
   x = 8,048.40