Finding the Fourth Proportional to 105,086.24, 157,700.76 and 42,768.08

Step by Step Solution

1. Step 1: Write the proportion equation
   105,086.24 : 157,700.76 = 42,768.08 : x
2. Step 2: Convert to fraction form
   105,086.24/157,700.76 = 42,768.08/x
3. Step 3: Cross multiply
   105,086.24x = 157,700.76 × 42,768.08
4. Step 4: Simplify right side
   105,086.24x = 6,744,558,719.74
5. Step 5: Solve for x
   x = 6,744,558,719.74/105,086.24
6. Step 6: Final answer
   x = 64,181.18