Finding the Fourth Proportional to 67,401.12, 101,019.69 and 47,685.36

Step by Step Solution

1. Step 1: Write the proportion equation
   67,401.12 : 101,019.69 = 47,685.36 : x
2. Step 2: Convert to fraction form
   67,401.12/101,019.69 = 47,685.36/x
3. Step 3: Cross multiply
   67,401.12x = 101,019.69 × 47,685.36
4. Step 4: Simplify right side
   67,401.12x = 4,817,160,284.74
5. Step 5: Solve for x
   x = 4,817,160,284.74/67,401.12
6. Step 6: Final answer
   x = 71,470.03