Finding the Fourth Proportional to 10,195.98, 14,070.28 and 5,719.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,195.98 : 14,070.28 = 5,719.72 : x
2. Step 2: Convert to fraction form
   10,195.98/14,070.28 = 5,719.72/x
3. Step 3: Cross multiply
   10,195.98x = 14,070.28 × 5,719.72
4. Step 4: Simplify right side
   10,195.98x = 80,478,061.92
5. Step 5: Solve for x
   x = 80,478,061.92/10,195.98
6. Step 6: Final answer
   x = 7,893.12