Finding the Fourth Proportional to 35,492.84, 48,978.46 and 20,375

Step by Step Solution

1. Step 1: Write the proportion equation
   35,492.84 : 48,978.46 = 20,375 : x
2. Step 2: Convert to fraction form
   35,492.84/48,978.46 = 20,375/x
3. Step 3: Cross multiply
   35,492.84x = 48,978.46 × 20,375
4. Step 4: Simplify right side
   35,492.84x = 997,936,122.50
5. Step 5: Solve for x
   x = 997,936,122.50/35,492.84
6. Step 6: Final answer
   x = 28,116.55