Finding the Fourth Proportional to 22,429.55, 33,649.53 and 7,638.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,429.55 : 33,649.53 = 7,638.59 : x
2. Step 2: Convert to fraction form
   22,429.55/33,649.53 = 7,638.59/x
3. Step 3: Cross multiply
   22,429.55x = 33,649.53 × 7,638.59
4. Step 4: Simplify right side
   22,429.55x = 257,034,953.81
5. Step 5: Solve for x
   x = 257,034,953.81/22,429.55
6. Step 6: Final answer
   x = 11,459.66