Finding the Fourth Proportional to 72,614.75, 108,875.61 and 28,205.01

Step by Step Solution

1. Step 1: Write the proportion equation
   72,614.75 : 108,875.61 = 28,205.01 : x
2. Step 2: Convert to fraction form
   72,614.75/108,875.61 = 28,205.01/x
3. Step 3: Cross multiply
   72,614.75x = 108,875.61 × 28,205.01
4. Step 4: Simplify right side
   72,614.75x = 3,070,837,668.81
5. Step 5: Solve for x
   x = 3,070,837,668.81/72,614.75
6. Step 6: Final answer
   x = 42,289.45