Finding the Fourth Proportional to 105,061.23, 144,984.31 and 57,314.59

Step by Step Solution

1. Step 1: Write the proportion equation
   105,061.23 : 144,984.31 = 57,314.59 : x
2. Step 2: Convert to fraction form
   105,061.23/144,984.31 = 57,314.59/x
3. Step 3: Cross multiply
   105,061.23x = 144,984.31 × 57,314.59
4. Step 4: Simplify right side
   105,061.23x = 8,309,715,778.34
5. Step 5: Solve for x
   x = 8,309,715,778.34/105,061.23
6. Step 6: Final answer
   x = 79,094.03