Finding the Fourth Proportional to 66,105.30, 99,164.43 and 21,714.06

Step by Step Solution

1. Step 1: Write the proportion equation
   66,105.30 : 99,164.43 = 21,714.06 : x
2. Step 2: Convert to fraction form
   66,105.30/99,164.43 = 21,714.06/x
3. Step 3: Cross multiply
   66,105.30x = 99,164.43 × 21,714.06
4. Step 4: Simplify right side
   66,105.30x = 2,153,262,382.89
5. Step 5: Solve for x
   x = 2,153,262,382.89/66,105.30
6. Step 6: Final answer
   x = 32,573.22