Finding the Fourth Proportional to 76,333.37, 105,337.19 and 42,797.21

Step by Step Solution

1. Step 1: Write the proportion equation
   76,333.37 : 105,337.19 = 42,797.21 : x
2. Step 2: Convert to fraction form
   76,333.37/105,337.19 = 42,797.21/x
3. Step 3: Cross multiply
   76,333.37x = 105,337.19 × 42,797.21
4. Step 4: Simplify right side
   76,333.37x = 4,508,137,421.55
5. Step 5: Solve for x
   x = 4,508,137,421.55/76,333.37
6. Step 6: Final answer
   x = 59,058.54