Finding the Fourth Proportional to 83,379.78, 115,084.35 and 51,529.50

Step by Step Solution

1. Step 1: Write the proportion equation
   83,379.78 : 115,084.35 = 51,529.50 : x
2. Step 2: Convert to fraction form
   83,379.78/115,084.35 = 51,529.50/x
3. Step 3: Cross multiply
   83,379.78x = 115,084.35 × 51,529.50
4. Step 4: Simplify right side
   83,379.78x = 5,930,239,013.33
5. Step 5: Solve for x
   x = 5,930,239,013.33/83,379.78
6. Step 6: Final answer
   x = 71,123.23