Finding the Fourth Proportional to 76,104.56, 105,029.16 and 42,570.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,104.56 : 105,029.16 = 42,570.56 : x
2. Step 2: Convert to fraction form
   76,104.56/105,029.16 = 42,570.56/x
3. Step 3: Cross multiply
   76,104.56x = 105,029.16 × 42,570.56
4. Step 4: Simplify right side
   76,104.56x = 4,471,150,260.46
5. Step 5: Solve for x
   x = 4,471,150,260.46/76,104.56
6. Step 6: Final answer
   x = 58,750.09