Finding the Fourth Proportional to 145,977.33, 201,448.76 and 78,909.33

Step by Step Solution

1. Step 1: Write the proportion equation
   145,977.33 : 201,448.76 = 78,909.33 : x
2. Step 2: Convert to fraction form
   145,977.33/201,448.76 = 78,909.33/x
3. Step 3: Cross multiply
   145,977.33x = 201,448.76 × 78,909.33
4. Step 4: Simplify right side
   145,977.33x = 15,896,185,870.96
5. Step 5: Solve for x
   x = 15,896,185,870.96/145,977.33
6. Step 6: Final answer
   x = 108,894.90