Finding the Fourth Proportional to 107,039.53, 147,542.39 and 72,573.09

Step by Step Solution

1. Step 1: Write the proportion equation
   107,039.53 : 147,542.39 = 72,573.09 : x
2. Step 2: Convert to fraction form
   107,039.53/147,542.39 = 72,573.09/x
3. Step 3: Cross multiply
   107,039.53x = 147,542.39 × 72,573.09
4. Step 4: Simplify right side
   107,039.53x = 10,707,606,715.14
5. Step 5: Solve for x
   x = 10,707,606,715.14/107,039.53
6. Step 6: Final answer
   x = 100,034.14