Finding the Fourth Proportional to 83,221.98, 114,840.42 and 47,405.40

Step by Step Solution

1. Step 1: Write the proportion equation
   83,221.98 : 114,840.42 = 47,405.40 : x
2. Step 2: Convert to fraction form
   83,221.98/114,840.42 = 47,405.40/x
3. Step 3: Cross multiply
   83,221.98x = 114,840.42 × 47,405.40
4. Step 4: Simplify right side
   83,221.98x = 5,444,056,046.27
5. Step 5: Solve for x
   x = 5,444,056,046.27/83,221.98
6. Step 6: Final answer
   x = 65,416.08