Finding the Fourth Proportional to 92,095.72, 138,143.85 and 75,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   92,095.72 : 138,143.85 = 75,570.10 : x
2. Step 2: Convert to fraction form
   92,095.72/138,143.85 = 75,570.10/x
3. Step 3: Cross multiply
   92,095.72x = 138,143.85 × 75,570.10
4. Step 4: Simplify right side
   92,095.72x = 10,439,544,558.89
5. Step 5: Solve for x
   x = 10,439,544,558.89/92,095.72
6. Step 6: Final answer
   x = 113,355.37