Finding the Fourth Proportional to 14,196.96, 21,294.60 and 5,427.90

Step by Step Solution

1. Step 1: Write the proportion equation
   14,196.96 : 21,294.60 = 5,427.90 : x
2. Step 2: Convert to fraction form
   14,196.96/21,294.60 = 5,427.90/x
3. Step 3: Cross multiply
   14,196.96x = 21,294.60 × 5,427.90
4. Step 4: Simplify right side
   14,196.96x = 115,584,959.34
5. Step 5: Solve for x
   x = 115,584,959.34/14,196.96
6. Step 6: Final answer
   x = 8,141.53