Finding the Fourth Proportional to 80,250.86, 120,310.61 and 30,302.61

Step by Step Solution

1. Step 1: Write the proportion equation
   80,250.86 : 120,310.61 = 30,302.61 : x
2. Step 2: Convert to fraction form
   80,250.86/120,310.61 = 30,302.61/x
3. Step 3: Cross multiply
   80,250.86x = 120,310.61 × 30,302.61
4. Step 4: Simplify right side
   80,250.86x = 3,645,725,342.18
5. Step 5: Solve for x
   x = 3,645,725,342.18/80,250.86
6. Step 6: Final answer
   x = 45,429.12