Finding the Fourth Proportional to 71,487.29, 107,196.18 and 21,558.08

Step by Step Solution

1. Step 1: Write the proportion equation
   71,487.29 : 107,196.18 = 21,558.08 : x
2. Step 2: Convert to fraction form
   71,487.29/107,196.18 = 21,558.08/x
3. Step 3: Cross multiply
   71,487.29x = 107,196.18 × 21,558.08
4. Step 4: Simplify right side
   71,487.29x = 2,310,943,288.15
5. Step 5: Solve for x
   x = 2,310,943,288.15/71,487.29
6. Step 6: Final answer
   x = 32,326.63