Finding the Fourth Proportional to 30,697.48, 42,362.12 and 17,268.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,697.48 : 42,362.12 = 17,268.72 : x
2. Step 2: Convert to fraction form
   30,697.48/42,362.12 = 17,268.72/x
3. Step 3: Cross multiply
   30,697.48x = 42,362.12 × 17,268.72
4. Step 4: Simplify right side
   30,697.48x = 731,539,588.89
5. Step 5: Solve for x
   x = 731,539,588.89/30,697.48
6. Step 6: Final answer
   x = 23,830.61