Finding the Fourth Proportional to 52,360.83, 72,259.43 and 28,489.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,360.83 : 72,259.43 = 28,489.05 : x
2. Step 2: Convert to fraction form
   52,360.83/72,259.43 = 28,489.05/x
3. Step 3: Cross multiply
   52,360.83x = 72,259.43 × 28,489.05
4. Step 4: Simplify right side
   52,360.83x = 2,058,602,371.80
5. Step 5: Solve for x
   x = 2,058,602,371.80/52,360.83
6. Step 6: Final answer
   x = 39,315.69