Finding the Fourth Proportional to 47,152.18, 70,738.17 and 13,869.45

Step by Step Solution

1. Step 1: Write the proportion equation
   47,152.18 : 70,738.17 = 13,869.45 : x
2. Step 2: Convert to fraction form
   47,152.18/70,738.17 = 13,869.45/x
3. Step 3: Cross multiply
   47,152.18x = 70,738.17 × 13,869.45
4. Step 4: Simplify right side
   47,152.18x = 981,099,511.91
5. Step 5: Solve for x
   x = 981,099,511.91/47,152.18
6. Step 6: Final answer
   x = 20,807.09