Finding the Fourth Proportional to 55,736.78, 83,555.96 and 42,647.59

Step by Step Solution

1. Step 1: Write the proportion equation
   55,736.78 : 83,555.96 = 42,647.59 : x
2. Step 2: Convert to fraction form
   55,736.78/83,555.96 = 42,647.59/x
3. Step 3: Cross multiply
   55,736.78x = 83,555.96 × 42,647.59
4. Step 4: Simplify right side
   55,736.78x = 3,563,459,902.01
5. Step 5: Solve for x
   x = 3,563,459,902.01/55,736.78
6. Step 6: Final answer
   x = 63,933.72