Finding the Fourth Proportional to 53,895.82, 80,736.57 and 42,154.06

Step by Step Solution

1. Step 1: Write the proportion equation
   53,895.82 : 80,736.57 = 42,154.06 : x
2. Step 2: Convert to fraction form
   53,895.82/80,736.57 = 42,154.06/x
3. Step 3: Cross multiply
   53,895.82x = 80,736.57 × 42,154.06
4. Step 4: Simplify right side
   53,895.82x = 3,403,374,215.97
5. Step 5: Solve for x
   x = 3,403,374,215.97/53,895.82
6. Step 6: Final answer
   x = 63,147.28