Finding the Fourth Proportional to 105,457.83, 145,509.29 and 62,450.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,457.83 : 145,509.29 = 62,450.83 : x
2. Step 2: Convert to fraction form
   105,457.83/145,509.29 = 62,450.83/x
3. Step 3: Cross multiply
   105,457.83x = 145,509.29 × 62,450.83
4. Step 4: Simplify right side
   105,457.83x = 9,087,176,037.03
5. Step 5: Solve for x
   x = 9,087,176,037.03/105,457.83
6. Step 6: Final answer
   x = 86,168.82