Finding the Fourth Proportional to 22,156.22, 30,577.40 and 12,599.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,156.22 : 30,577.40 = 12,599.10 : x
2. Step 2: Convert to fraction form
   22,156.22/30,577.40 = 12,599.10/x
3. Step 3: Cross multiply
   22,156.22x = 30,577.40 × 12,599.10
4. Step 4: Simplify right side
   22,156.22x = 385,247,657.34
5. Step 5: Solve for x
   x = 385,247,657.34/22,156.22
6. Step 6: Final answer
   x = 17,387.79