Finding the Fourth Proportional to 14,145.93, 19,521.27 and 7,858.17

Step by Step Solution

1. Step 1: Write the proportion equation
   14,145.93 : 19,521.27 = 7,858.17 : x
2. Step 2: Convert to fraction form
   14,145.93/19,521.27 = 7,858.17/x
3. Step 3: Cross multiply
   14,145.93x = 19,521.27 × 7,858.17
4. Step 4: Simplify right side
   14,145.93x = 153,401,458.28
5. Step 5: Solve for x
   x = 153,401,458.28/14,145.93
6. Step 6: Final answer
   x = 10,844.21