Finding the Fourth Proportional to 162,255.88, 243,383.99 and 42,312.74

Step by Step Solution

1. Step 1: Write the proportion equation
   162,255.88 : 243,383.99 = 42,312.74 : x
2. Step 2: Convert to fraction form
   162,255.88/243,383.99 = 42,312.74/x
3. Step 3: Cross multiply
   162,255.88x = 243,383.99 × 42,312.74
4. Step 4: Simplify right side
   162,255.88x = 10,298,244,009.85
5. Step 5: Solve for x
   x = 10,298,244,009.85/162,255.88
6. Step 6: Final answer
   x = 63,469.16