Finding the Fourth Proportional to 15,100.69, 20,838.84 and 8,386.34

Step by Step Solution

1. Step 1: Write the proportion equation
   15,100.69 : 20,838.84 = 8,386.34 : x
2. Step 2: Convert to fraction form
   15,100.69/20,838.84 = 8,386.34/x
3. Step 3: Cross multiply
   15,100.69x = 20,838.84 × 8,386.34
4. Step 4: Simplify right side
   15,100.69x = 174,761,597.45
5. Step 5: Solve for x
   x = 174,761,597.45/15,100.69
6. Step 6: Final answer
   x = 11,573.09