Finding the Fourth Proportional to 51,300.60, 76,959 and 21,718.62

Step by Step Solution

1. Step 1: Write the proportion equation
   51,300.60 : 76,959 = 21,718.62 : x
2. Step 2: Convert to fraction form
   51,300.60/76,959 = 21,718.62/x
3. Step 3: Cross multiply
   51,300.60x = 76,959 × 21,718.62
4. Step 4: Simplify right side
   51,300.60x = 1,671,443,276.58
5. Step 5: Solve for x
   x = 1,671,443,276.58/51,300.60
6. Step 6: Final answer
   x = 32,581.36