Finding the Fourth Proportional to 14,431.31, 21,648.20 and 5,070.52

Step by Step Solution

1. Step 1: Write the proportion equation
   14,431.31 : 21,648.20 = 5,070.52 : x
2. Step 2: Convert to fraction form
   14,431.31/21,648.20 = 5,070.52/x
3. Step 3: Cross multiply
   14,431.31x = 21,648.20 × 5,070.52
4. Step 4: Simplify right side
   14,431.31x = 109,767,497.47
5. Step 5: Solve for x
   x = 109,767,497.47/14,431.31
6. Step 6: Final answer
   x = 7,606.20