Finding the Fourth Proportional to 78,404.16, 117,626.04 and 34,020.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,404.16 : 117,626.04 = 34,020.12 : x
2. Step 2: Convert to fraction form
   78,404.16/117,626.04 = 34,020.12/x
3. Step 3: Cross multiply
   78,404.16x = 117,626.04 × 34,020.12
4. Step 4: Simplify right side
   78,404.16x = 4,001,651,995.92
5. Step 5: Solve for x
   x = 4,001,651,995.92/78,404.16
6. Step 6: Final answer
   x = 51,038.77