Finding the Fourth Proportional to 11,838.34, 17,761.36 and 7,905.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,838.34 : 17,761.36 = 7,905.59 : x
2. Step 2: Convert to fraction form
   11,838.34/17,761.36 = 7,905.59/x
3. Step 3: Cross multiply
   11,838.34x = 17,761.36 × 7,905.59
4. Step 4: Simplify right side
   11,838.34x = 140,414,030.00
5. Step 5: Solve for x
   x = 140,414,030.00/11,838.34
6. Step 6: Final answer
   x = 11,860.96