Finding the Fourth Proportional to 132,486.50, 182,834.25 and 72,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,486.50 : 182,834.25 = 72,870.50 : x
2. Step 2: Convert to fraction form
   132,486.50/182,834.25 = 72,870.50/x
3. Step 3: Cross multiply
   132,486.50x = 182,834.25 × 72,870.50
4. Step 4: Simplify right side
   132,486.50x = 13,323,223,214.63
5. Step 5: Solve for x
   x = 13,323,223,214.63/132,486.50
6. Step 6: Final answer
   x = 100,562.87