Finding the Fourth Proportional to 42,645.27, 58,928.67 and 40,596.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,645.27 : 58,928.67 = 40,596.78 : x
2. Step 2: Convert to fraction form
   42,645.27/58,928.67 = 40,596.78/x
3. Step 3: Cross multiply
   42,645.27x = 58,928.67 × 40,596.78
4. Step 4: Simplify right side
   42,645.27x = 2,392,314,251.68
5. Step 5: Solve for x
   x = 2,392,314,251.68/42,645.27
6. Step 6: Final answer
   x = 56,098.00