Finding the Fourth Proportional to 119,086.34, 164,338.74 and 64,638.52

Step by Step Solution

1. Step 1: Write the proportion equation
   119,086.34 : 164,338.74 = 64,638.52 : x
2. Step 2: Convert to fraction form
   119,086.34/164,338.74 = 64,638.52/x
3. Step 3: Cross multiply
   119,086.34x = 164,338.74 × 64,638.52
4. Step 4: Simplify right side
   119,086.34x = 10,622,612,932.26
5. Step 5: Solve for x
   x = 10,622,612,932.26/119,086.34
6. Step 6: Final answer
   x = 89,200.94