Finding the Fourth Proportional to 119,111.70, 164,374.43 and 65,400.16

Step by Step Solution

1. Step 1: Write the proportion equation
   119,111.70 : 164,374.43 = 65,400.16 : x
2. Step 2: Convert to fraction form
   119,111.70/164,374.43 = 65,400.16/x
3. Step 3: Cross multiply
   119,111.70x = 164,374.43 × 65,400.16
4. Step 4: Simplify right side
   119,111.70x = 10,750,113,694.91
5. Step 5: Solve for x
   x = 10,750,113,694.91/119,111.70
6. Step 6: Final answer
   x = 90,252.37