Finding the Fourth Proportional to 61,279.37, 91,996.83 and 52,103.69

Step by Step Solution

1. Step 1: Write the proportion equation
   61,279.37 : 91,996.83 = 52,103.69 : x
2. Step 2: Convert to fraction form
   61,279.37/91,996.83 = 52,103.69/x
3. Step 3: Cross multiply
   61,279.37x = 91,996.83 × 52,103.69
4. Step 4: Simplify right side
   61,279.37x = 4,793,374,311.30
5. Step 5: Solve for x
   x = 4,793,374,311.30/61,279.37
6. Step 6: Final answer
   x = 78,221.66