Finding the Fourth Proportional to 65,864.04, 98,811.83 and 21,490.89

Step by Step Solution

1. Step 1: Write the proportion equation
   65,864.04 : 98,811.83 = 21,490.89 : x
2. Step 2: Convert to fraction form
   65,864.04/98,811.83 = 21,490.89/x
3. Step 3: Cross multiply
   65,864.04x = 98,811.83 × 21,490.89
4. Step 4: Simplify right side
   65,864.04x = 2,123,553,852.41
5. Step 5: Solve for x
   x = 2,123,553,852.41/65,864.04
6. Step 6: Final answer
   x = 32,241.48