Finding the Fourth Proportional to 76,359.47, 105,372.42 and 42,367.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,359.47 : 105,372.42 = 42,367.56 : x
2. Step 2: Convert to fraction form
   76,359.47/105,372.42 = 42,367.56/x
3. Step 3: Cross multiply
   76,359.47x = 105,372.42 × 42,367.56
4. Step 4: Simplify right side
   76,359.47x = 4,464,372,326.70
5. Step 5: Solve for x
   x = 4,464,372,326.70/76,359.47
6. Step 6: Final answer
   x = 58,465.21