Finding the Fourth Proportional to 43,165.42, 64,755.72 and 17,864.86

Step by Step Solution

1. Step 1: Write the proportion equation
   43,165.42 : 64,755.72 = 17,864.86 : x
2. Step 2: Convert to fraction form
   43,165.42/64,755.72 = 17,864.86/x
3. Step 3: Cross multiply
   43,165.42x = 64,755.72 × 17,864.86
4. Step 4: Simplify right side
   43,165.42x = 1,156,851,872.00
5. Step 5: Solve for x
   x = 1,156,851,872.00/43,165.42
6. Step 6: Final answer
   x = 26,800.43