Finding the Fourth Proportional to 22,051.16, 30,430.15 and 12,490.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,051.16 : 30,430.15 = 12,490.88 : x
2. Step 2: Convert to fraction form
   22,051.16/30,430.15 = 12,490.88/x
3. Step 3: Cross multiply
   22,051.16x = 30,430.15 × 12,490.88
4. Step 4: Simplify right side
   22,051.16x = 380,099,352.03
5. Step 5: Solve for x
   x = 380,099,352.03/22,051.16
6. Step 6: Final answer
   x = 17,237.16