Finding the Fourth Proportional to 76,429.25, 105,472.37 and 42,895.25

Step by Step Solution

1. Step 1: Write the proportion equation
   76,429.25 : 105,472.37 = 42,895.25 : x
2. Step 2: Convert to fraction form
   76,429.25/105,472.37 = 42,895.25/x
3. Step 3: Cross multiply
   76,429.25x = 105,472.37 × 42,895.25
4. Step 4: Simplify right side
   76,429.25x = 4,524,263,464.77
5. Step 5: Solve for x
   x = 4,524,263,464.77/76,429.25
6. Step 6: Final answer
   x = 59,195.45