Finding the Fourth Proportional to 108,064.72, 149,131.56 and 60,320.08

Step by Step Solution

1. Step 1: Write the proportion equation
   108,064.72 : 149,131.56 = 60,320.08 : x
2. Step 2: Convert to fraction form
   108,064.72/149,131.56 = 60,320.08/x
3. Step 3: Cross multiply
   108,064.72x = 149,131.56 × 60,320.08
4. Step 4: Simplify right side
   108,064.72x = 8,995,627,629.72
5. Step 5: Solve for x
   x = 8,995,627,629.72/108,064.72
6. Step 6: Final answer
   x = 83,242.96