Finding the Fourth Proportional to 72,392.91, 108,549.89 and 21,784.53

Step by Step Solution

1. Step 1: Write the proportion equation
   72,392.91 : 108,549.89 = 21,784.53 : x
2. Step 2: Convert to fraction form
   72,392.91/108,549.89 = 21,784.53/x
3. Step 3: Cross multiply
   72,392.91x = 108,549.89 × 21,784.53
4. Step 4: Simplify right side
   72,392.91x = 2,364,708,796.73
5. Step 5: Solve for x
   x = 2,364,708,796.73/72,392.91
6. Step 6: Final answer
   x = 32,664.92