Finding the Fourth Proportional to 109,429.70, 164,047.35 and 65,009.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,429.70 : 164,047.35 = 65,009.30 : x
2. Step 2: Convert to fraction form
   109,429.70/164,047.35 = 65,009.30/x
3. Step 3: Cross multiply
   109,429.70x = 164,047.35 × 65,009.30
4. Step 4: Simplify right side
   109,429.70x = 10,664,603,390.36
5. Step 5: Solve for x
   x = 10,664,603,390.36/109,429.70
6. Step 6: Final answer
   x = 97,456.21