Finding the Fourth Proportional to 83,970.18, 115,874.01 and 50,429.70

Step by Step Solution

1. Step 1: Write the proportion equation
   83,970.18 : 115,874.01 = 50,429.70 : x
2. Step 2: Convert to fraction form
   83,970.18/115,874.01 = 50,429.70/x
3. Step 3: Cross multiply
   83,970.18x = 115,874.01 × 50,429.70
4. Step 4: Simplify right side
   83,970.18x = 5,843,491,562.10
5. Step 5: Solve for x
   x = 5,843,491,562.10/83,970.18
6. Step 6: Final answer
   x = 69,590.08