Finding the Fourth Proportional to 52,185.47, 72,016.10 and 28,312.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,185.47 : 72,016.10 = 28,312.34 : x
2. Step 2: Convert to fraction form
   52,185.47/72,016.10 = 28,312.34/x
3. Step 3: Cross multiply
   52,185.47x = 72,016.10 × 28,312.34
4. Step 4: Simplify right side
   52,185.47x = 2,038,944,379.45
5. Step 5: Solve for x
   x = 2,038,944,379.45/52,185.47
6. Step 6: Final answer
   x = 39,071.11