Finding the Fourth Proportional to 79,892.85, 119,830.43 and 28,599.47

Step by Step Solution

1. Step 1: Write the proportion equation
   79,892.85 : 119,830.43 = 28,599.47 : x
2. Step 2: Convert to fraction form
   79,892.85/119,830.43 = 28,599.47/x
3. Step 3: Cross multiply
   79,892.85x = 119,830.43 × 28,599.47
4. Step 4: Simplify right side
   79,892.85x = 3,427,086,944.45
5. Step 5: Solve for x
   x = 3,427,086,944.45/79,892.85
6. Step 6: Final answer
   x = 42,896.04