Finding the Fourth Proportional to 47,162.55, 70,719.47 and 13,878.29

Step by Step Solution

1. Step 1: Write the proportion equation
   47,162.55 : 70,719.47 = 13,878.29 : x
2. Step 2: Convert to fraction form
   47,162.55/70,719.47 = 13,878.29/x
3. Step 3: Cross multiply
   47,162.55x = 70,719.47 × 13,878.29
4. Step 4: Simplify right side
   47,162.55x = 981,464,994.40
5. Step 5: Solve for x
   x = 981,464,994.40/47,162.55
6. Step 6: Final answer
   x = 20,810.26