Finding the Fourth Proportional to 53,426.73, 73,791.62 and 42,708.72

Step by Step Solution

1. Step 1: Write the proportion equation
   53,426.73 : 73,791.62 = 42,708.72 : x
2. Step 2: Convert to fraction form
   53,426.73/73,791.62 = 42,708.72/x
3. Step 3: Cross multiply
   53,426.73x = 73,791.62 × 42,708.72
4. Step 4: Simplify right side
   53,426.73x = 3,151,545,789.19
5. Step 5: Solve for x
   x = 3,151,545,789.19/53,426.73
6. Step 6: Final answer
   x = 58,988.19