Finding the Fourth Proportional to 42,146.48, 63,082.56 and 31,048.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,146.48 : 63,082.56 = 31,048.80 : x
2. Step 2: Convert to fraction form
   42,146.48/63,082.56 = 31,048.80/x
3. Step 3: Cross multiply
   42,146.48x = 63,082.56 × 31,048.80
4. Step 4: Simplify right side
   42,146.48x = 1,958,637,788.93
5. Step 5: Solve for x
   x = 1,958,637,788.93/42,146.48
6. Step 6: Final answer
   x = 46,472.16