Finding the Fourth Proportional to 78,767.84, 108,638.16 and 50,476.16

Step by Step Solution

1. Step 1: Write the proportion equation
   78,767.84 : 108,638.16 = 50,476.16 : x
2. Step 2: Convert to fraction form
   78,767.84/108,638.16 = 50,476.16/x
3. Step 3: Cross multiply
   78,767.84x = 108,638.16 × 50,476.16
4. Step 4: Simplify right side
   78,767.84x = 5,483,637,146.27
5. Step 5: Solve for x
   x = 5,483,637,146.27/78,767.84
6. Step 6: Final answer
   x = 69,617.72