Finding the Fourth Proportional to 76,357.50, 105,371.38 and 42,365.86

Step by Step Solution

1. Step 1: Write the proportion equation
   76,357.50 : 105,371.38 = 42,365.86 : x
2. Step 2: Convert to fraction form
   76,357.50/105,371.38 = 42,365.86/x
3. Step 3: Cross multiply
   76,357.50x = 105,371.38 × 42,365.86
4. Step 4: Simplify right side
   76,357.50x = 4,464,149,133.09
5. Step 5: Solve for x
   x = 4,464,149,133.09/76,357.50
6. Step 6: Final answer
   x = 58,463.79