Finding the Fourth Proportional to 42,669.54, 63,943.31 and 31,335.98

Step by Step Solution

1. Step 1: Write the proportion equation
   42,669.54 : 63,943.31 = 31,335.98 : x
2. Step 2: Convert to fraction form
   42,669.54/63,943.31 = 31,335.98/x
3. Step 3: Cross multiply
   42,669.54x = 63,943.31 × 31,335.98
4. Step 4: Simplify right side
   42,669.54x = 2,003,726,283.29
5. Step 5: Solve for x
   x = 2,003,726,283.29/42,669.54
6. Step 6: Final answer
   x = 46,959.17