Finding the Fourth Proportional to 63,780.28, 88,016.80 and 35,486

Step by Step Solution

1. Step 1: Write the proportion equation
   63,780.28 : 88,016.80 = 35,486 : x
2. Step 2: Convert to fraction form
   63,780.28/88,016.80 = 35,486/x
3. Step 3: Cross multiply
   63,780.28x = 88,016.80 × 35,486
4. Step 4: Simplify right side
   63,780.28x = 3,123,364,164.80
5. Step 5: Solve for x
   x = 3,123,364,164.80/63,780.28
6. Step 6: Final answer
   x = 48,970.69