Finding the Fourth Proportional to 105,365.99, 145,407.59 and 60,043

Step by Step Solution

1. Step 1: Write the proportion equation
   105,365.99 : 145,407.59 = 60,043 : x
2. Step 2: Convert to fraction form
   105,365.99/145,407.59 = 60,043/x
3. Step 3: Cross multiply
   105,365.99x = 145,407.59 × 60,043
4. Step 4: Simplify right side
   105,365.99x = 8,730,707,926.37
5. Step 5: Solve for x
   x = 8,730,707,926.37/105,365.99
6. Step 6: Final answer
   x = 82,860.78