Finding the Fourth Proportional to 83,692.50, 115,467.54 and 47,389

Step by Step Solution

1. Step 1: Write the proportion equation
   83,692.50 : 115,467.54 = 47,389 : x
2. Step 2: Convert to fraction form
   83,692.50/115,467.54 = 47,389/x
3. Step 3: Cross multiply
   83,692.50x = 115,467.54 × 47,389
4. Step 4: Simplify right side
   83,692.50x = 5,471,891,253.06
5. Step 5: Solve for x
   x = 5,471,891,253.06/83,692.50
6. Step 6: Final answer
   x = 65,380.90