Finding the Fourth Proportional to 22,402.08, 30,918.96 and 12,971.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,402.08 : 30,918.96 = 12,971.52 : x
2. Step 2: Convert to fraction form
   22,402.08/30,918.96 = 12,971.52/x
3. Step 3: Cross multiply
   22,402.08x = 30,918.96 × 12,971.52
4. Step 4: Simplify right side
   22,402.08x = 401,065,908.02
5. Step 5: Solve for x
   x = 401,065,908.02/22,402.08
6. Step 6: Final answer
   x = 17,903.07