Finding the Fourth Proportional to 53,710.56, 74,119.68 and 31,049.28

Step by Step Solution

1. Step 1: Write the proportion equation
   53,710.56 : 74,119.68 = 31,049.28 : x
2. Step 2: Convert to fraction form
   53,710.56/74,119.68 = 31,049.28/x
3. Step 3: Cross multiply
   53,710.56x = 74,119.68 × 31,049.28
4. Step 4: Simplify right side
   53,710.56x = 2,301,362,697.83
5. Step 5: Solve for x
   x = 2,301,362,697.83/53,710.56
6. Step 6: Final answer
   x = 42,847.49