Finding the Fourth Proportional to 42,718.56, 58,944.96 and 25,721.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,718.56 : 58,944.96 = 25,721.52 : x
2. Step 2: Convert to fraction form
   42,718.56/58,944.96 = 25,721.52/x
3. Step 3: Cross multiply
   42,718.56x = 58,944.96 × 25,721.52
4. Step 4: Simplify right side
   42,718.56x = 1,516,153,967.54
5. Step 5: Solve for x
   x = 1,516,153,967.54/42,718.56
6. Step 6: Final answer
   x = 35,491.69