Finding the Fourth Proportional to 52,399.69, 72,300.36 and 31,174.81

Step by Step Solution

1. Step 1: Write the proportion equation
   52,399.69 : 72,300.36 = 31,174.81 : x
2. Step 2: Convert to fraction form
   52,399.69/72,300.36 = 31,174.81/x
3. Step 3: Cross multiply
   52,399.69x = 72,300.36 × 31,174.81
4. Step 4: Simplify right side
   52,399.69x = 2,253,949,985.93
5. Step 5: Solve for x
   x = 2,253,949,985.93/52,399.69
6. Step 6: Final answer
   x = 43,014.57