Finding the Fourth Proportional to 72,569.06, 108,895.04 and 28,190.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,569.06 : 108,895.04 = 28,190.03 : x
2. Step 2: Convert to fraction form
   72,569.06/108,895.04 = 28,190.03/x
3. Step 3: Cross multiply
   72,569.06x = 108,895.04 × 28,190.03
4. Step 4: Simplify right side
   72,569.06x = 3,069,754,303.50
5. Step 5: Solve for x
   x = 3,069,754,303.50/72,569.06
6. Step 6: Final answer
   x = 42,301.15