Finding the Fourth Proportional to 123,300.06, 170,154.15 and 85,596.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123,300.06 : 170,154.15 = 85,596.18 : x
2. Step 2: Convert to fraction form
   123,300.06/170,154.15 = 85,596.18/x
3. Step 3: Cross multiply
   123,300.06x = 170,154.15 × 85,596.18
4. Step 4: Simplify right side
   123,300.06x = 14,564,545,251.15
5. Step 5: Solve for x
   x = 14,564,545,251.15/123,300.06
6. Step 6: Final answer
   x = 118,122.78