Finding the Fourth Proportional to 77,956.56, 107,579.73 and 42,146.55

Step by Step Solution

1. Step 1: Write the proportion equation
   77,956.56 : 107,579.73 = 42,146.55 : x
2. Step 2: Convert to fraction form
   77,956.56/107,579.73 = 42,146.55/x
3. Step 3: Cross multiply
   77,956.56x = 107,579.73 × 42,146.55
4. Step 4: Simplify right side
   77,956.56x = 4,534,114,469.43
5. Step 5: Solve for x
   x = 4,534,114,469.43/77,956.56
6. Step 6: Final answer
   x = 58,162.06