Finding the Fourth Proportional to 132,635.69, 183,039.59 and 72,208.07

Step by Step Solution

1. Step 1: Write the proportion equation
   132,635.69 : 183,039.59 = 72,208.07 : x
2. Step 2: Convert to fraction form
   132,635.69/183,039.59 = 72,208.07/x
3. Step 3: Cross multiply
   132,635.69x = 183,039.59 × 72,208.07
4. Step 4: Simplify right side
   132,635.69x = 13,216,935,527.49
5. Step 5: Solve for x
   x = 13,216,935,527.49/132,635.69
6. Step 6: Final answer
   x = 99,648.41