Finding the Fourth Proportional to 35,077.32, 52,584.86 and 12,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,077.32 : 52,584.86 = 12,885.50 : x
2. Step 2: Convert to fraction form
   35,077.32/52,584.86 = 12,885.50/x
3. Step 3: Cross multiply
   35,077.32x = 52,584.86 × 12,885.50
4. Step 4: Simplify right side
   35,077.32x = 677,582,377.21
5. Step 5: Solve for x
   x = 677,582,377.21/35,077.32
6. Step 6: Final answer
   x = 19,316.82