Finding the Fourth Proportional to 54,081.51, 74,653.01 and 40,691.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,081.51 : 74,653.01 = 40,691.69 : x
2. Step 2: Convert to fraction form
   54,081.51/74,653.01 = 40,691.69/x
3. Step 3: Cross multiply
   54,081.51x = 74,653.01 × 40,691.69
4. Step 4: Simplify right side
   54,081.51x = 3,037,756,996.31
5. Step 5: Solve for x
   x = 3,037,756,996.31/54,081.51
6. Step 6: Final answer
   x = 56,169.98