Finding the Fourth Proportional to 10,437.83, 15,658.47 and 5,173.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,437.83 : 15,658.47 = 5,173.07 : x
2. Step 2: Convert to fraction form
   10,437.83/15,658.47 = 5,173.07/x
3. Step 3: Cross multiply
   10,437.83x = 15,658.47 × 5,173.07
4. Step 4: Simplify right side
   10,437.83x = 81,002,400.55
5. Step 5: Solve for x
   x = 81,002,400.55/10,437.83
6. Step 6: Final answer
   x = 7,760.47