Finding the Fourth Proportional to 119,321.61, 164,659.40 and 65,603.43

Step by Step Solution

1. Step 1: Write the proportion equation
   119,321.61 : 164,659.40 = 65,603.43 : x
2. Step 2: Convert to fraction form
   119,321.61/164,659.40 = 65,603.43/x
3. Step 3: Cross multiply
   119,321.61x = 164,659.40 × 65,603.43
4. Step 4: Simplify right side
   119,321.61x = 10,802,221,093.72
5. Step 5: Solve for x
   x = 10,802,221,093.72/119,321.61
6. Step 6: Final answer
   x = 90,530.30