Finding the Fourth Proportional to 55,917, 77,167.08 and 30,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,917 : 77,167.08 = 30,766.50 : x
2. Step 2: Convert to fraction form
   55,917/77,167.08 = 30,766.50/x
3. Step 3: Cross multiply
   55,917x = 77,167.08 × 30,766.50
4. Step 4: Simplify right side
   55,917x = 2,374,160,966.82
5. Step 5: Solve for x
   x = 2,374,160,966.82/55,917
6. Step 6: Final answer
   x = 42,458.66