Finding the Fourth Proportional to 52,185.33, 72,015.97 and 28,312.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,185.33 : 72,015.97 = 28,312.18 : x
2. Step 2: Convert to fraction form
   52,185.33/72,015.97 = 28,312.18/x
3. Step 3: Cross multiply
   52,185.33x = 72,015.97 × 28,312.18
4. Step 4: Simplify right side
   52,185.33x = 2,038,929,105.51
5. Step 5: Solve for x
   x = 2,038,929,105.51/52,185.33
6. Step 6: Final answer
   x = 39,070.92