Finding the Fourth Proportional to 78,454.49, 117,615.59 and 34,047.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,454.49 : 117,615.59 = 34,047.78 : x
2. Step 2: Convert to fraction form
   78,454.49/117,615.59 = 34,047.78/x
3. Step 3: Cross multiply
   78,454.49x = 117,615.59 × 34,047.78
4. Step 4: Simplify right side
   78,454.49x = 4,004,549,562.65
5. Step 5: Solve for x
   x = 4,004,549,562.65/78,454.49
6. Step 6: Final answer
   x = 51,042.97