Finding the Fourth Proportional to 76,845.56, 106,047.48 and 42,856.25

Step by Step Solution

1. Step 1: Write the proportion equation
   76,845.56 : 106,047.48 = 42,856.25 : x
2. Step 2: Convert to fraction form
   76,845.56/106,047.48 = 42,856.25/x
3. Step 3: Cross multiply
   76,845.56x = 106,047.48 × 42,856.25
4. Step 4: Simplify right side
   76,845.56x = 4,544,797,314.75
5. Step 5: Solve for x
   x = 4,544,797,314.75/76,845.56
6. Step 6: Final answer
   x = 59,141.96