Finding the Fourth Proportional to 283,405.50, 391,099.59 and 156,080.82

Step by Step Solution

1. Step 1: Write the proportion equation
   283,405.50 : 391,099.59 = 156,080.82 : x
2. Step 2: Convert to fraction form
   283,405.50/391,099.59 = 156,080.82/x
3. Step 3: Cross multiply
   283,405.50x = 391,099.59 × 156,080.82
4. Step 4: Simplify right side
   283,405.50x = 61,043,144,708.86
5. Step 5: Solve for x
   x = 61,043,144,708.86/283,405.50
6. Step 6: Final answer
   x = 215,391.53