Finding the Fourth Proportional to 78,774.74, 117,884.55 and 49,206.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,774.74 : 117,884.55 = 49,206.50 : x
2. Step 2: Convert to fraction form
   78,774.74/117,884.55 = 49,206.50/x
3. Step 3: Cross multiply
   78,774.74x = 117,884.55 × 49,206.50
4. Step 4: Simplify right side
   78,774.74x = 5,800,686,109.58
5. Step 5: Solve for x
   x = 5,800,686,109.58/78,774.74
6. Step 6: Final answer
   x = 73,636.37