Finding the Fourth Proportional to 109,390.06, 164,022.45 and 65,047.78

Step by Step Solution

1. Step 1: Write the proportion equation
   109,390.06 : 164,022.45 = 65,047.78 : x
2. Step 2: Convert to fraction form
   109,390.06/164,022.45 = 65,047.78/x
3. Step 3: Cross multiply
   109,390.06x = 164,022.45 × 65,047.78
4. Step 4: Simplify right side
   109,390.06x = 10,669,296,242.66
5. Step 5: Solve for x
   x = 10,669,296,242.66/109,390.06
6. Step 6: Final answer
   x = 97,534.42