Finding the Fourth Proportional to 67,978.60, 93,784.28 and 50,116.08

Step by Step Solution

1. Step 1: Write the proportion equation
   67,978.60 : 93,784.28 = 50,116.08 : x
2. Step 2: Convert to fraction form
   67,978.60/93,784.28 = 50,116.08/x
3. Step 3: Cross multiply
   67,978.60x = 93,784.28 × 50,116.08
4. Step 4: Simplify right side
   67,978.60x = 4,700,100,479.22
5. Step 5: Solve for x
   x = 4,700,100,479.22/67,978.60
6. Step 6: Final answer
   x = 69,140.88