Finding the Fourth Proportional to 52,152.69, 71,970.32 and 28,279.33

Step by Step Solution

1. Step 1: Write the proportion equation
   52,152.69 : 71,970.32 = 28,279.33 : x
2. Step 2: Convert to fraction form
   52,152.69/71,970.32 = 28,279.33/x
3. Step 3: Cross multiply
   52,152.69x = 71,970.32 × 28,279.33
4. Step 4: Simplify right side
   52,152.69x = 2,035,272,320.26
5. Step 5: Solve for x
   x = 2,035,272,320.26/52,152.69
6. Step 6: Final answer
   x = 39,025.26