Finding the Fourth Proportional to 52,559.76, 72,532.71 and 28,686.96

Step by Step Solution

1. Step 1: Write the proportion equation
   52,559.76 : 72,532.71 = 28,686.96 : x
2. Step 2: Convert to fraction form
   52,559.76/72,532.71 = 28,686.96/x
3. Step 3: Cross multiply
   52,559.76x = 72,532.71 × 28,686.96
4. Step 4: Simplify right side
   52,559.76x = 2,080,742,950.46
5. Step 5: Solve for x
   x = 2,080,742,950.46/52,559.76
6. Step 6: Final answer
   x = 39,588.14