Finding the Fourth Proportional to 13,901.69, 19,184.71 and 7,851.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,901.69 : 19,184.71 = 7,851.45 : x
2. Step 2: Convert to fraction form
   13,901.69/19,184.71 = 7,851.45/x
3. Step 3: Cross multiply
   13,901.69x = 19,184.71 × 7,851.45
4. Step 4: Simplify right side
   13,901.69x = 150,627,801.96
5. Step 5: Solve for x
   x = 150,627,801.96/13,901.69
6. Step 6: Final answer
   x = 10,835.21