Finding the Fourth Proportional to 72,818.08, 100,505.34 and 47,653

Step by Step Solution

1. Step 1: Write the proportion equation
   72,818.08 : 100,505.34 = 47,653 : x
2. Step 2: Convert to fraction form
   72,818.08/100,505.34 = 47,653/x
3. Step 3: Cross multiply
   72,818.08x = 100,505.34 × 47,653
4. Step 4: Simplify right side
   72,818.08x = 4,789,380,967.02
5. Step 5: Solve for x
   x = 4,789,380,967.02/72,818.08
6. Step 6: Final answer
   x = 65,771.87