Finding the Fourth Proportional to 146,376.72, 219,617.76 and 57,581.04

Step by Step Solution

1. Step 1: Write the proportion equation
   146,376.72 : 219,617.76 = 57,581.04 : x
2. Step 2: Convert to fraction form
   146,376.72/219,617.76 = 57,581.04/x
3. Step 3: Cross multiply
   146,376.72x = 219,617.76 × 57,581.04
4. Step 4: Simplify right side
   146,376.72x = 12,645,819,023.27
5. Step 5: Solve for x
   x = 12,645,819,023.27/146,376.72
6. Step 6: Final answer
   x = 86,392.28