Finding the Fourth Proportional to 68,335.83, 94,314.42 and 56,985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   68,335.83 : 94,314.42 = 56,985.30 : x
2. Step 2: Convert to fraction form
   68,335.83/94,314.42 = 56,985.30/x
3. Step 3: Cross multiply
   68,335.83x = 94,314.42 × 56,985.30
4. Step 4: Simplify right side
   68,335.83x = 5,374,535,518.03
5. Step 5: Solve for x
   x = 5,374,535,518.03/68,335.83
6. Step 6: Final answer
   x = 78,648.87