Finding the Fourth Proportional to 67,642.80, 93,336.16 and 42,474.48

Step by Step Solution

1. Step 1: Write the proportion equation
   67,642.80 : 93,336.16 = 42,474.48 : x
2. Step 2: Convert to fraction form
   67,642.80/93,336.16 = 42,474.48/x
3. Step 3: Cross multiply
   67,642.80x = 93,336.16 × 42,474.48
4. Step 4: Simplify right side
   67,642.80x = 3,964,404,861.20
5. Step 5: Solve for x
   x = 3,964,404,861.20/67,642.80
6. Step 6: Final answer
   x = 58,607.94