Finding the Fourth Proportional to 109,911.45, 164,817.90 and 43,317.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,911.45 : 164,817.90 = 43,317.30 : x
2. Step 2: Convert to fraction form
   109,911.45/164,817.90 = 43,317.30/x
3. Step 3: Cross multiply
   109,911.45x = 164,817.90 × 43,317.30
4. Step 4: Simplify right side
   109,911.45x = 7,139,466,419.67
5. Step 5: Solve for x
   x = 7,139,466,419.67/109,911.45
6. Step 6: Final answer
   x = 64,956.53