Finding the Fourth Proportional to 52,189.97, 78,184.19 and 31,146.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,189.97 : 78,184.19 = 31,146.80 : x
2. Step 2: Convert to fraction form
   52,189.97/78,184.19 = 31,146.80/x
3. Step 3: Cross multiply
   52,189.97x = 78,184.19 × 31,146.80
4. Step 4: Simplify right side
   52,189.97x = 2,435,187,500.52
5. Step 5: Solve for x
   x = 2,435,187,500.52/52,189.97
6. Step 6: Final answer
   x = 46,660.07