Finding the Fourth Proportional to 7,172.82, 9,900.63 and 5,053.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,172.82 : 9,900.63 = 5,053.86 : x
2. Step 2: Convert to fraction form
   7,172.82/9,900.63 = 5,053.86/x
3. Step 3: Cross multiply
   7,172.82x = 9,900.63 × 5,053.86
4. Step 4: Simplify right side
   7,172.82x = 50,036,397.93
5. Step 5: Solve for x
   x = 50,036,397.93/7,172.82
6. Step 6: Final answer
   x = 6,975.83