Finding the Fourth Proportional to 22,316.16, 30,796.30 and 12,756.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,316.16 : 30,796.30 = 12,756.25 : x
2. Step 2: Convert to fraction form
   22,316.16/30,796.30 = 12,756.25/x
3. Step 3: Cross multiply
   22,316.16x = 30,796.30 × 12,756.25
4. Step 4: Simplify right side
   22,316.16x = 392,845,301.88
5. Step 5: Solve for x
   x = 392,845,301.88/22,316.16
6. Step 6: Final answer
   x = 17,603.62