Finding the Fourth Proportional to 119,111.69, 164,374.46 and 65,400.19

Step by Step Solution

1. Step 1: Write the proportion equation
   119,111.69 : 164,374.46 = 65,400.19 : x
2. Step 2: Convert to fraction form
   119,111.69/164,374.46 = 65,400.19/x
3. Step 3: Cross multiply
   119,111.69x = 164,374.46 × 65,400.19
4. Step 4: Simplify right side
   119,111.69x = 10,750,120,915.15
5. Step 5: Solve for x
   x = 10,750,120,915.15/119,111.69
6. Step 6: Final answer
   x = 90,252.44