Finding the Fourth Proportional to 68,678.34, 103,485.51 and 56,471.82

Step by Step Solution

1. Step 1: Write the proportion equation
   68,678.34 : 103,485.51 = 56,471.82 : x
2. Step 2: Convert to fraction form
   68,678.34/103,485.51 = 56,471.82/x
3. Step 3: Cross multiply
   68,678.34x = 103,485.51 × 56,471.82
4. Step 4: Simplify right side
   68,678.34x = 5,844,015,093.33
5. Step 5: Solve for x
   x = 5,844,015,093.33/68,678.34
6. Step 6: Final answer
   x = 85,092.55