Finding the Fourth Proportional to 132,719.56, 183,153.25 and 72,290.02

Step by Step Solution

1. Step 1: Write the proportion equation
   132,719.56 : 183,153.25 = 72,290.02 : x
2. Step 2: Convert to fraction form
   132,719.56/183,153.25 = 72,290.02/x
3. Step 3: Cross multiply
   132,719.56x = 183,153.25 × 72,290.02
4. Step 4: Simplify right side
   132,719.56x = 13,240,152,081.46
5. Step 5: Solve for x
   x = 13,240,152,081.46/132,719.56
6. Step 6: Final answer
   x = 99,760.37