Finding the Fourth Proportional to 52,450.86, 78,744.88 and 31,142.47

Step by Step Solution

1. Step 1: Write the proportion equation
   52,450.86 : 78,744.88 = 31,142.47 : x
2. Step 2: Convert to fraction form
   52,450.86/78,744.88 = 31,142.47/x
3. Step 3: Cross multiply
   52,450.86x = 78,744.88 × 31,142.47
4. Step 4: Simplify right side
   52,450.86x = 2,452,309,656.12
5. Step 5: Solve for x
   x = 2,452,309,656.12/52,450.86
6. Step 6: Final answer
   x = 46,754.42