Finding the Fourth Proportional to 147,732.18, 221,667.47 and 72,811.48

Step by Step Solution

1. Step 1: Write the proportion equation
   147,732.18 : 221,667.47 = 72,811.48 : x
2. Step 2: Convert to fraction form
   147,732.18/221,667.47 = 72,811.48/x
3. Step 3: Cross multiply
   147,732.18x = 221,667.47 × 72,811.48
4. Step 4: Simplify right side
   147,732.18x = 16,139,936,329.00
5. Step 5: Solve for x
   x = 16,139,936,329.00/147,732.18
6. Step 6: Final answer
   x = 109,251.33