Finding the Fourth Proportional to 52,405.43, 72,319.76 and 28,532.03

Step by Step Solution

1. Step 1: Write the proportion equation
   52,405.43 : 72,319.76 = 28,532.03 : x
2. Step 2: Convert to fraction form
   52,405.43/72,319.76 = 28,532.03/x
3. Step 3: Cross multiply
   52,405.43x = 72,319.76 × 28,532.03
4. Step 4: Simplify right side
   52,405.43x = 2,063,429,271.64
5. Step 5: Solve for x
   x = 2,063,429,271.64/52,405.43
6. Step 6: Final answer
   x = 39,374.34