Finding the Fourth Proportional to 78,426.54, 117,627.39 and 65,184.57

Step by Step Solution

1. Step 1: Write the proportion equation
   78,426.54 : 117,627.39 = 65,184.57 : x
2. Step 2: Convert to fraction form
   78,426.54/117,627.39 = 65,184.57/x
3. Step 3: Cross multiply
   78,426.54x = 117,627.39 × 65,184.57
4. Step 4: Simplify right side
   78,426.54x = 7,667,490,837.37
5. Step 5: Solve for x
   x = 7,667,490,837.37/78,426.54
6. Step 6: Final answer
   x = 97,766.53