Finding the Fourth Proportional to 87,328.69, 120,513.60 and 47,584.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,328.69 : 120,513.60 = 47,584.69 : x
2. Step 2: Convert to fraction form
   87,328.69/120,513.60 = 47,584.69/x
3. Step 3: Cross multiply
   87,328.69x = 120,513.60 × 47,584.69
4. Step 4: Simplify right side
   87,328.69x = 5,734,601,995.50
5. Step 5: Solve for x
   x = 5,734,601,995.50/87,328.69
6. Step 6: Final answer
   x = 65,666.87