Finding the Fourth Proportional to 51,256.02, 70,670.47 and 42,149.56

Step by Step Solution

1. Step 1: Write the proportion equation
   51,256.02 : 70,670.47 = 42,149.56 : x
2. Step 2: Convert to fraction form
   51,256.02/70,670.47 = 42,149.56/x
3. Step 3: Cross multiply
   51,256.02x = 70,670.47 × 42,149.56
4. Step 4: Simplify right side
   51,256.02x = 2,978,729,198.46
5. Step 5: Solve for x
   x = 2,978,729,198.46/51,256.02
6. Step 6: Final answer
   x = 58,114.71