Finding the Fourth Proportional to 67,978.60, 93,784.29 and 50,116.07

Step by Step Solution

1. Step 1: Write the proportion equation
   67,978.60 : 93,784.29 = 50,116.07 : x
2. Step 2: Convert to fraction form
   67,978.60/93,784.29 = 50,116.07/x
3. Step 3: Cross multiply
   67,978.60x = 93,784.29 × 50,116.07
4. Step 4: Simplify right side
   67,978.60x = 4,700,100,042.54
5. Step 5: Solve for x
   x = 4,700,100,042.54/67,978.60
6. Step 6: Final answer
   x = 69,140.88