Finding the Fourth Proportional to 71,411.60, 107,116.86 and 21,491.48

Step by Step Solution

1. Step 1: Write the proportion equation
   71,411.60 : 107,116.86 = 21,491.48 : x
2. Step 2: Convert to fraction form
   71,411.60/107,116.86 = 21,491.48/x
3. Step 3: Cross multiply
   71,411.60x = 107,116.86 × 21,491.48
4. Step 4: Simplify right side
   71,411.60x = 2,302,099,854.35
5. Step 5: Solve for x
   x = 2,302,099,854.35/71,411.60
6. Step 6: Final answer
   x = 32,237.06