Finding the Fourth Proportional to 113,858.72, 170,788.58 and 47,298.79

Step by Step Solution

1. Step 1: Write the proportion equation
   113,858.72 : 170,788.58 = 47,298.79 : x
2. Step 2: Convert to fraction form
   113,858.72/170,788.58 = 47,298.79/x
3. Step 3: Cross multiply
   113,858.72x = 170,788.58 × 47,298.79
4. Step 4: Simplify right side
   113,858.72x = 8,078,093,179.82
5. Step 5: Solve for x
   x = 8,078,093,179.82/113,858.72
6. Step 6: Final answer
   x = 70,948.39