Finding the Fourth Proportional to 71,417.70, 107,091.92 and 21,488.49

Step by Step Solution

1. Step 1: Write the proportion equation
   71,417.70 : 107,091.92 = 21,488.49 : x
2. Step 2: Convert to fraction form
   71,417.70/107,091.92 = 21,488.49/x
3. Step 3: Cross multiply
   71,417.70x = 107,091.92 × 21,488.49
4. Step 4: Simplify right side
   71,417.70x = 2,301,243,705.72
5. Step 5: Solve for x
   x = 2,301,243,705.72/71,417.70
6. Step 6: Final answer
   x = 32,222.32