Finding the Fourth Proportional to 132,422.50, 182,743.05 and 72,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,422.50 : 182,743.05 = 72,806.50 : x
2. Step 2: Convert to fraction form
   132,422.50/182,743.05 = 72,806.50/x
3. Step 3: Cross multiply
   132,422.50x = 182,743.05 × 72,806.50
4. Step 4: Simplify right side
   132,422.50x = 13,304,881,869.83
5. Step 5: Solve for x
   x = 13,304,881,869.83/132,422.50
6. Step 6: Final answer
   x = 100,472.97