Finding the Fourth Proportional to 31,549.10, 43,514.89 and 21,459.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,549.10 : 43,514.89 = 21,459.62 : x
2. Step 2: Convert to fraction form
   31,549.10/43,514.89 = 21,459.62/x
3. Step 3: Cross multiply
   31,549.10x = 43,514.89 × 21,459.62
4. Step 4: Simplify right side
   31,549.10x = 933,813,058.88
5. Step 5: Solve for x
   x = 933,813,058.88/31,549.10
6. Step 6: Final answer
   x = 29,598.73