Finding the Fourth Proportional to 146,388.63, 219,427.41 and 57,629.91

Step by Step Solution

1. Step 1: Write the proportion equation
   146,388.63 : 219,427.41 = 57,629.91 : x
2. Step 2: Convert to fraction form
   146,388.63/219,427.41 = 57,629.91/x
3. Step 3: Cross multiply
   146,388.63x = 219,427.41 × 57,629.91
4. Step 4: Simplify right side
   146,388.63x = 12,645,581,889.83
5. Step 5: Solve for x
   x = 12,645,581,889.83/146,388.63
6. Step 6: Final answer
   x = 86,383.63