Finding the Fourth Proportional to 8,835.48, 12,194.14 and 5,700.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,835.48 : 12,194.14 = 5,700.78 : x
2. Step 2: Convert to fraction form
   8,835.48/12,194.14 = 5,700.78/x
3. Step 3: Cross multiply
   8,835.48x = 12,194.14 × 5,700.78
4. Step 4: Simplify right side
   8,835.48x = 69,516,109.43
5. Step 5: Solve for x
   x = 69,516,109.43/8,835.48
6. Step 6: Final answer
   x = 7,867.84