Finding the Fourth Proportional to 31,278.74, 43,160.72 and 24,921.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,278.74 : 43,160.72 = 24,921.48 : x
2. Step 2: Convert to fraction form
   31,278.74/43,160.72 = 24,921.48/x
3. Step 3: Cross multiply
   31,278.74x = 43,160.72 × 24,921.48
4. Step 4: Simplify right side
   31,278.74x = 1,075,629,020.27
5. Step 5: Solve for x
   x = 1,075,629,020.27/31,278.74
6. Step 6: Final answer
   x = 34,388.50