Finding the Fourth Proportional to 14,146.35, 19,521.10 and 7,858.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,146.35 : 19,521.10 = 7,858.72 : x
2. Step 2: Convert to fraction form
   14,146.35/19,521.10 = 7,858.72/x
3. Step 3: Cross multiply
   14,146.35x = 19,521.10 × 7,858.72
4. Step 4: Simplify right side
   14,146.35x = 153,410,893.22
5. Step 5: Solve for x
   x = 153,410,893.22/14,146.35
6. Step 6: Final answer
   x = 10,844.56