Finding the Fourth Proportional to 145,406.52, 200,671.56 and 88,828.56

Step by Step Solution

1. Step 1: Write the proportion equation
   145,406.52 : 200,671.56 = 88,828.56 : x
2. Step 2: Convert to fraction form
   145,406.52/200,671.56 = 88,828.56/x
3. Step 3: Cross multiply
   145,406.52x = 200,671.56 × 88,828.56
4. Step 4: Simplify right side
   145,406.52x = 17,825,365,707.75
5. Step 5: Solve for x
   x = 17,825,365,707.75/145,406.52
6. Step 6: Final answer
   x = 122,589.87