Finding the Fourth Proportional to 53,086.79, 79,657.53 and 49,322.42

Step by Step Solution

1. Step 1: Write the proportion equation
   53,086.79 : 79,657.53 = 49,322.42 : x
2. Step 2: Convert to fraction form
   53,086.79/79,657.53 = 49,322.42/x
3. Step 3: Cross multiply
   53,086.79x = 79,657.53 × 49,322.42
4. Step 4: Simplify right side
   53,086.79x = 3,928,901,866.29
5. Step 5: Solve for x
   x = 3,928,901,866.29/53,086.79
6. Step 6: Final answer
   x = 74,009.03