Finding the Fourth Proportional to 145,766.76, 201,089.40 and 85,300.32

Step by Step Solution

1. Step 1: Write the proportion equation
   145,766.76 : 201,089.40 = 85,300.32 : x
2. Step 2: Convert to fraction form
   145,766.76/201,089.40 = 85,300.32/x
3. Step 3: Cross multiply
   145,766.76x = 201,089.40 × 85,300.32
4. Step 4: Simplify right side
   145,766.76x = 17,152,990,168.61
5. Step 5: Solve for x
   x = 17,152,990,168.61/145,766.76
6. Step 6: Final answer
   x = 117,674.22