Finding the Fourth Proportional to 47,068.72, 70,602.60 and 12,008

Step by Step Solution

1. Step 1: Write the proportion equation
   47,068.72 : 70,602.60 = 12,008 : x
2. Step 2: Convert to fraction form
   47,068.72/70,602.60 = 12,008/x
3. Step 3: Cross multiply
   47,068.72x = 70,602.60 × 12,008
4. Step 4: Simplify right side
   47,068.72x = 847,796,020.80
5. Step 5: Solve for x
   x = 847,796,020.80/47,068.72
6. Step 6: Final answer
   x = 18,011.88