Finding the Fourth Proportional to 105,068.96, 144,995 and 57,322.29

Step by Step Solution

1. Step 1: Write the proportion equation
   105,068.96 : 144,995 = 57,322.29 : x
2. Step 2: Convert to fraction form
   105,068.96/144,995 = 57,322.29/x
3. Step 3: Cross multiply
   105,068.96x = 144,995 × 57,322.29
4. Step 4: Simplify right side
   105,068.96x = 8,311,445,438.55
5. Step 5: Solve for x
   x = 8,311,445,438.55/105,068.96
6. Step 6: Final answer
   x = 79,104.67