Finding the Fourth Proportional to 68,128.42, 93,919.78 and 47,922.59

Step by Step Solution

1. Step 1: Write the proportion equation
   68,128.42 : 93,919.78 = 47,922.59 : x
2. Step 2: Convert to fraction form
   68,128.42/93,919.78 = 47,922.59/x
3. Step 3: Cross multiply
   68,128.42x = 93,919.78 × 47,922.59
4. Step 4: Simplify right side
   68,128.42x = 4,500,878,741.45
5. Step 5: Solve for x
   x = 4,500,878,741.45/68,128.42
6. Step 6: Final answer
   x = 66,064.63