Finding the Fourth Proportional to 92,984.88, 139,398.72 and 40,354.80

Step by Step Solution

1. Step 1: Write the proportion equation
   92,984.88 : 139,398.72 = 40,354.80 : x
2. Step 2: Convert to fraction form
   92,984.88/139,398.72 = 40,354.80/x
3. Step 3: Cross multiply
   92,984.88x = 139,398.72 × 40,354.80
4. Step 4: Simplify right side
   92,984.88x = 5,625,407,465.86
5. Step 5: Solve for x
   x = 5,625,407,465.86/92,984.88
6. Step 6: Final answer
   x = 60,498.09