Finding the Fourth Proportional to 59,492.42, 89,213.25 and 31,394.78

Step by Step Solution

1. Step 1: Write the proportion equation
   59,492.42 : 89,213.25 = 31,394.78 : x
2. Step 2: Convert to fraction form
   59,492.42/89,213.25 = 31,394.78/x
3. Step 3: Cross multiply
   59,492.42x = 89,213.25 × 31,394.78
4. Step 4: Simplify right side
   59,492.42x = 2,800,830,356.84
5. Step 5: Solve for x
   x = 2,800,830,356.84/59,492.42
6. Step 6: Final answer
   x = 47,078.78