Finding the Fourth Proportional to 56,820.50, 78,379.77 and 35,562.86

Step by Step Solution

1. Step 1: Write the proportion equation
   56,820.50 : 78,379.77 = 35,562.86 : x
2. Step 2: Convert to fraction form
   56,820.50/78,379.77 = 35,562.86/x
3. Step 3: Cross multiply
   56,820.50x = 78,379.77 × 35,562.86
4. Step 4: Simplify right side
   56,820.50x = 2,787,408,217.63
5. Step 5: Solve for x
   x = 2,787,408,217.63/56,820.50
6. Step 6: Final answer
   x = 49,056.39