Finding the Fourth Proportional to 52,820.88, 72,874.71 and 30,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,820.88 : 72,874.71 = 30,143.50 : x
2. Step 2: Convert to fraction form
   52,820.88/72,874.71 = 30,143.50/x
3. Step 3: Cross multiply
   52,820.88x = 72,874.71 × 30,143.50
4. Step 4: Simplify right side
   52,820.88x = 2,196,698,820.89
5. Step 5: Solve for x
   x = 2,196,698,820.89/52,820.88
6. Step 6: Final answer
   x = 41,587.70