Finding the Fourth Proportional to 72,212.63, 99,619.83 and 46,727.21

Step by Step Solution

1. Step 1: Write the proportion equation
   72,212.63 : 99,619.83 = 46,727.21 : x
2. Step 2: Convert to fraction form
   72,212.63/99,619.83 = 46,727.21/x
3. Step 3: Cross multiply
   72,212.63x = 99,619.83 × 46,727.21
4. Step 4: Simplify right side
   72,212.63x = 4,654,956,965.62
5. Step 5: Solve for x
   x = 4,654,956,965.62/72,212.63
6. Step 6: Final answer
   x = 64,461.82