Finding the Fourth Proportional to 109,771.61, 164,712.69 and 43,259.47

Step by Step Solution

1. Step 1: Write the proportion equation
   109,771.61 : 164,712.69 = 43,259.47 : x
2. Step 2: Convert to fraction form
   109,771.61/164,712.69 = 43,259.47/x
3. Step 3: Cross multiply
   109,771.61x = 164,712.69 × 43,259.47
4. Step 4: Simplify right side
   109,771.61x = 7,125,383,259.89
5. Step 5: Solve for x
   x = 7,125,383,259.89/109,771.61
6. Step 6: Final answer
   x = 64,910.99