Finding the Fourth Proportional to 80,336.99, 120,522.37 and 30,415.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,336.99 : 120,522.37 = 30,415.98 : x
2. Step 2: Convert to fraction form
   80,336.99/120,522.37 = 30,415.98/x
3. Step 3: Cross multiply
   80,336.99x = 120,522.37 × 30,415.98
4. Step 4: Simplify right side
   80,336.99x = 3,665,805,392.86
5. Step 5: Solve for x
   x = 3,665,805,392.86/80,336.99
6. Step 6: Final answer
   x = 45,630.36