Finding the Fourth Proportional to 69,401.40, 104,086.50 and 31,925.49

Step by Step Solution

1. Step 1: Write the proportion equation
   69,401.40 : 104,086.50 = 31,925.49 : x
2. Step 2: Convert to fraction form
   69,401.40/104,086.50 = 31,925.49/x
3. Step 3: Cross multiply
   69,401.40x = 104,086.50 × 31,925.49
4. Step 4: Simplify right side
   69,401.40x = 3,323,012,514.89
5. Step 5: Solve for x
   x = 3,323,012,514.89/69,401.40
6. Step 6: Final answer
   x = 47,881.06