Finding the Fourth Proportional to 139,170.24, 192,055.32 and 75,507.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,170.24 : 192,055.32 = 75,507.89 : x
2. Step 2: Convert to fraction form
   139,170.24/192,055.32 = 75,507.89/x
3. Step 3: Cross multiply
   139,170.24x = 192,055.32 × 75,507.89
4. Step 4: Simplify right side
   139,170.24x = 14,501,691,016.20
5. Step 5: Solve for x
   x = 14,501,691,016.20/139,170.24
6. Step 6: Final answer
   x = 104,201.09