Finding the Fourth Proportional to 47,513.53, 65,564.22 and 28,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,513.53 : 65,564.22 = 28,389.50 : x
2. Step 2: Convert to fraction form
   47,513.53/65,564.22 = 28,389.50/x
3. Step 3: Cross multiply
   47,513.53x = 65,564.22 × 28,389.50
4. Step 4: Simplify right side
   47,513.53x = 1,861,335,423.69
5. Step 5: Solve for x
   x = 1,861,335,423.69/47,513.53
6. Step 6: Final answer
   x = 39,174.85