Finding the Fourth Proportional to 68,978.86, 103,411.87 and 35,708.42

Step by Step Solution

1. Step 1: Write the proportion equation
   68,978.86 : 103,411.87 = 35,708.42 : x
2. Step 2: Convert to fraction form
   68,978.86/103,411.87 = 35,708.42/x
3. Step 3: Cross multiply
   68,978.86x = 103,411.87 × 35,708.42
4. Step 4: Simplify right side
   68,978.86x = 3,692,674,656.20
5. Step 5: Solve for x
   x = 3,692,674,656.20/68,978.86
6. Step 6: Final answer
   x = 53,533.43