Finding the Fourth Proportional to 52,970.86, 73,100.33 and 28,772.30

Step by Step Solution

1. Step 1: Write the proportion equation
   52,970.86 : 73,100.33 = 28,772.30 : x
2. Step 2: Convert to fraction form
   52,970.86/73,100.33 = 28,772.30/x
3. Step 3: Cross multiply
   52,970.86x = 73,100.33 × 28,772.30
4. Step 4: Simplify right side
   52,970.86x = 2,103,264,115.50
5. Step 5: Solve for x
   x = 2,103,264,115.50/52,970.86
6. Step 6: Final answer
   x = 39,706.06