Finding the Fourth Proportional to 22,434.50, 30,959.61 and 13,008.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,434.50 : 30,959.61 = 13,008.53 : x
2. Step 2: Convert to fraction form
   22,434.50/30,959.61 = 13,008.53/x
3. Step 3: Cross multiply
   22,434.50x = 30,959.61 × 13,008.53
4. Step 4: Simplify right side
   22,434.50x = 402,739,015.47
5. Step 5: Solve for x
   x = 402,739,015.47/22,434.50
6. Step 6: Final answer
   x = 17,951.77