Finding the Fourth Proportional to 53,146.74, 79,665.42 and 23,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,146.74 : 79,665.42 = 23,578.50 : x
2. Step 2: Convert to fraction form
   53,146.74/79,665.42 = 23,578.50/x
3. Step 3: Cross multiply
   53,146.74x = 79,665.42 × 23,578.50
4. Step 4: Simplify right side
   53,146.74x = 1,878,391,105.47
5. Step 5: Solve for x
   x = 1,878,391,105.47/53,146.74
6. Step 6: Final answer
   x = 35,343.49