Finding the Fourth Proportional to 132,635.79, 183,039.72 and 72,208.17

Step by Step Solution

1. Step 1: Write the proportion equation
   132,635.79 : 183,039.72 = 72,208.17 : x
2. Step 2: Convert to fraction form
   132,635.79/183,039.72 = 72,208.17/x
3. Step 3: Cross multiply
   132,635.79x = 183,039.72 × 72,208.17
4. Step 4: Simplify right side
   132,635.79x = 13,216,961,942.27
5. Step 5: Solve for x
   x = 13,216,961,942.27/132,635.79
6. Step 6: Final answer
   x = 99,648.54