Finding the Fourth Proportional to 125,991.35, 173,868.06 and 69,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   125,991.35 : 173,868.06 = 69,402.72 : x
2. Step 2: Convert to fraction form
   125,991.35/173,868.06 = 69,402.72/x
3. Step 3: Cross multiply
   125,991.35x = 173,868.06 × 69,402.72
4. Step 4: Simplify right side
   125,991.35x = 12,066,916,285.12
5. Step 5: Solve for x
   x = 12,066,916,285.12/125,991.35
6. Step 6: Final answer
   x = 95,775.76