Finding the Fourth Proportional to 109,591.10, 164,265.15 and 43,009.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,591.10 : 164,265.15 = 43,009.10 : x
2. Step 2: Convert to fraction form
   109,591.10/164,265.15 = 43,009.10/x
3. Step 3: Cross multiply
   109,591.10x = 164,265.15 × 43,009.10
4. Step 4: Simplify right side
   109,591.10x = 7,064,896,262.87
5. Step 5: Solve for x
   x = 7,064,896,262.87/109,591.10
6. Step 6: Final answer
   x = 64,465.97