Finding the Fourth Proportional to 69,123.78, 103,684.96 and 31,673.22

Step by Step Solution

1. Step 1: Write the proportion equation
   69,123.78 : 103,684.96 = 31,673.22 : x
2. Step 2: Convert to fraction form
   69,123.78/103,684.96 = 31,673.22/x
3. Step 3: Cross multiply
   69,123.78x = 103,684.96 × 31,673.22
4. Step 4: Simplify right side
   69,123.78x = 3,284,036,548.77
5. Step 5: Solve for x
   x = 3,284,036,548.77/69,123.78
6. Step 6: Final answer
   x = 47,509.50