Finding the Fourth Proportional to 53,167.72, 79,609.74 and 42,097

Step by Step Solution

1. Step 1: Write the proportion equation
   53,167.72 : 79,609.74 = 42,097 : x
2. Step 2: Convert to fraction form
   53,167.72/79,609.74 = 42,097/x
3. Step 3: Cross multiply
   53,167.72x = 79,609.74 × 42,097
4. Step 4: Simplify right side
   53,167.72x = 3,351,331,224.78
5. Step 5: Solve for x
   x = 3,351,331,224.78/53,167.72
6. Step 6: Final answer
   x = 63,033.19