Finding the Fourth Proportional to 147,879.63, 221,837.82 and 57,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   147,879.63 : 221,837.82 = 57,910.72 : x
2. Step 2: Convert to fraction form
   147,879.63/221,837.82 = 57,910.72/x
3. Step 3: Cross multiply
   147,879.63x = 221,837.82 × 57,910.72
4. Step 4: Simplify right side
   147,879.63x = 12,846,787,879.43
5. Step 5: Solve for x
   x = 12,846,787,879.43/147,879.63
6. Step 6: Final answer
   x = 86,873.28