Finding the Fourth Proportional to 147,732.26, 221,667.59 and 72,811.56

Step by Step Solution

1. Step 1: Write the proportion equation
   147,732.26 : 221,667.59 = 72,811.56 : x
2. Step 2: Convert to fraction form
   147,732.26/221,667.59 = 72,811.56/x
3. Step 3: Cross multiply
   147,732.26x = 221,667.59 × 72,811.56
4. Step 4: Simplify right side
   147,732.26x = 16,139,962,665.28
5. Step 5: Solve for x
   x = 16,139,962,665.28/147,732.26
6. Step 6: Final answer
   x = 109,251.45