Finding the Fourth Proportional to 78,767.21, 108,637.31 and 50,475.53

Step by Step Solution

1. Step 1: Write the proportion equation
   78,767.21 : 108,637.31 = 50,475.53 : x
2. Step 2: Convert to fraction form
   78,767.21/108,637.31 = 50,475.53/x
3. Step 3: Cross multiply
   78,767.21x = 108,637.31 × 50,475.53
4. Step 4: Simplify right side
   78,767.21x = 5,483,525,004.46
5. Step 5: Solve for x
   x = 5,483,525,004.46/78,767.21
6. Step 6: Final answer
   x = 69,616.85