Finding the Fourth Proportional to 42,322.37, 63,358.94 and 31,278.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,322.37 : 63,358.94 = 31,278.29 : x
2. Step 2: Convert to fraction form
   42,322.37/63,358.94 = 31,278.29/x
3. Step 3: Cross multiply
   42,322.37x = 63,358.94 × 31,278.29
4. Step 4: Simplify right side
   42,322.37x = 1,981,759,060.81
5. Step 5: Solve for x
   x = 1,981,759,060.81/42,322.37
6. Step 6: Final answer
   x = 46,825.34