Finding the Fourth Proportional to 76,357.70, 105,373.50 and 42,371.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,357.70 : 105,373.50 = 42,371.42 : x
2. Step 2: Convert to fraction form
   76,357.70/105,373.50 = 42,371.42/x
3. Step 3: Cross multiply
   76,357.70x = 105,373.50 × 42,371.42
4. Step 4: Simplify right side
   76,357.70x = 4,464,824,825.37
5. Step 5: Solve for x
   x = 4,464,824,825.37/76,357.70
6. Step 6: Final answer
   x = 58,472.49