Finding the Fourth Proportional to 142,611.84, 213,769.33 and 47,770.56

Step by Step Solution

1. Step 1: Write the proportion equation
   142,611.84 : 213,769.33 = 47,770.56 : x
2. Step 2: Convert to fraction form
   142,611.84/213,769.33 = 47,770.56/x
3. Step 3: Cross multiply
   142,611.84x = 213,769.33 × 47,770.56
4. Step 4: Simplify right side
   142,611.84x = 10,211,880,485.50
5. Step 5: Solve for x
   x = 10,211,880,485.50/142,611.84
6. Step 6: Final answer
   x = 71,606.12