Finding the Fourth Proportional to 52,185.97, 72,016.80 and 28,312.84

Step by Step Solution

1. Step 1: Write the proportion equation
   52,185.97 : 72,016.80 = 28,312.84 : x
2. Step 2: Convert to fraction form
   52,185.97/72,016.80 = 28,312.84/x
3. Step 3: Cross multiply
   52,185.97x = 72,016.80 × 28,312.84
4. Step 4: Simplify right side
   52,185.97x = 2,038,999,994.15
5. Step 5: Solve for x
   x = 2,038,999,994.15/52,185.97
6. Step 6: Final answer
   x = 39,071.80