Finding the Fourth Proportional to 145,528.68, 200,780.04 and 88,185.72

Step by Step Solution

1. Step 1: Write the proportion equation
   145,528.68 : 200,780.04 = 88,185.72 : x
2. Step 2: Convert to fraction form
   145,528.68/200,780.04 = 88,185.72/x
3. Step 3: Cross multiply
   145,528.68x = 200,780.04 × 88,185.72
4. Step 4: Simplify right side
   145,528.68x = 17,705,932,389.03
5. Step 5: Solve for x
   x = 17,705,932,389.03/145,528.68
6. Step 6: Final answer
   x = 121,666.27