Finding the Fourth Proportional to 105,499.89, 145,598.38 and 63,066.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,499.89 : 145,598.38 = 63,066.62 : x
2. Step 2: Convert to fraction form
   105,499.89/145,598.38 = 63,066.62/x
3. Step 3: Cross multiply
   105,499.89x = 145,598.38 × 63,066.62
4. Step 4: Simplify right side
   105,499.89x = 9,182,397,910.40
5. Step 5: Solve for x
   x = 9,182,397,910.40/105,499.89
6. Step 6: Final answer
   x = 87,037.04