Finding the Fourth Proportional to 77,960.56, 107,585.48 and 42,150.49

Step by Step Solution

1. Step 1: Write the proportion equation
   77,960.56 : 107,585.48 = 42,150.49 : x
2. Step 2: Convert to fraction form
   77,960.56/107,585.48 = 42,150.49/x
3. Step 3: Cross multiply
   77,960.56x = 107,585.48 × 42,150.49
4. Step 4: Simplify right side
   77,960.56x = 4,534,780,473.95
5. Step 5: Solve for x
   x = 4,534,780,473.95/77,960.56
6. Step 6: Final answer
   x = 58,167.62