Finding the Fourth Proportional to 83,160.38, 124,592.78 and 47,620.28

Step by Step Solution

1. Step 1: Write the proportion equation
   83,160.38 : 124,592.78 = 47,620.28 : x
2. Step 2: Convert to fraction form
   83,160.38/124,592.78 = 47,620.28/x
3. Step 3: Cross multiply
   83,160.38x = 124,592.78 × 47,620.28
4. Step 4: Simplify right side
   83,160.38x = 5,933,143,500.11
5. Step 5: Solve for x
   x = 5,933,143,500.11/83,160.38
6. Step 6: Final answer
   x = 71,345.79