Finding the Fourth Proportional to 256,003.93, 383,963.37 and 78,463.27

Step by Step Solution

1. Step 1: Write the proportion equation
   256,003.93 : 383,963.37 = 78,463.27 : x
2. Step 2: Convert to fraction form
   256,003.93/383,963.37 = 78,463.27/x
3. Step 3: Cross multiply
   256,003.93x = 383,963.37 × 78,463.27
4. Step 4: Simplify right side
   256,003.93x = 30,127,021,570.42
5. Step 5: Solve for x
   x = 30,127,021,570.42/256,003.93
6. Step 6: Final answer
   x = 117,681.87