Finding the Fourth Proportional to 105,411.15, 145,537.56 and 62,404.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,411.15 : 145,537.56 = 62,404.52 : x
2. Step 2: Convert to fraction form
   105,411.15/145,537.56 = 62,404.52/x
3. Step 3: Cross multiply
   105,411.15x = 145,537.56 × 62,404.52
4. Step 4: Simplify right side
   105,411.15x = 9,082,200,846.08
5. Step 5: Solve for x
   x = 9,082,200,846.08/105,411.15
6. Step 6: Final answer
   x = 86,159.77