Finding the Fourth Proportional to 78,826.34, 118,028.10 and 49,185.20

Step by Step Solution

1. Step 1: Write the proportion equation
   78,826.34 : 118,028.10 = 49,185.20 : x
2. Step 2: Convert to fraction form
   78,826.34/118,028.10 = 49,185.20/x
3. Step 3: Cross multiply
   78,826.34x = 118,028.10 × 49,185.20
4. Step 4: Simplify right side
   78,826.34x = 5,805,235,704.12
5. Step 5: Solve for x
   x = 5,805,235,704.12/78,826.34
6. Step 6: Final answer
   x = 73,645.89