Finding the Fourth Proportional to 145,977.83, 201,449.46 and 78,909.83

Step by Step Solution

1. Step 1: Write the proportion equation
   145,977.83 : 201,449.46 = 78,909.83 : x
2. Step 2: Convert to fraction form
   145,977.83/201,449.46 = 78,909.83/x
3. Step 3: Cross multiply
   145,977.83x = 201,449.46 × 78,909.83
4. Step 4: Simplify right side
   145,977.83x = 15,896,341,240.40
5. Step 5: Solve for x
   x = 15,896,341,240.40/145,977.83
6. Step 6: Final answer
   x = 108,895.59