Finding the Fourth Proportional to 53,577.18, 73,767.82 and 40,789.31

Step by Step Solution

1. Step 1: Write the proportion equation
   53,577.18 : 73,767.82 = 40,789.31 : x
2. Step 2: Convert to fraction form
   53,577.18/73,767.82 = 40,789.31/x
3. Step 3: Cross multiply
   53,577.18x = 73,767.82 × 40,789.31
4. Step 4: Simplify right side
   53,577.18x = 3,008,938,478.00
5. Step 5: Solve for x
   x = 3,008,938,478.00/53,577.18
6. Step 6: Final answer
   x = 56,160.82