Finding the Fourth Proportional to 128,625.01, 192,019.89 and 120,077.30

Step by Step Solution

1. Step 1: Write the proportion equation
   128,625.01 : 192,019.89 = 120,077.30 : x
2. Step 2: Convert to fraction form
   128,625.01/192,019.89 = 120,077.30/x
3. Step 3: Cross multiply
   128,625.01x = 192,019.89 × 120,077.30
4. Step 4: Simplify right side
   128,625.01x = 23,057,229,937.50
5. Step 5: Solve for x
   x = 23,057,229,937.50/128,625.01
6. Step 6: Final answer
   x = 179,259.31