Finding the Fourth Proportional to 52,412.86, 72,328.71 and 28,539.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,412.86 : 72,328.71 = 28,539.82 : x
2. Step 2: Convert to fraction form
   52,412.86/72,328.71 = 28,539.82/x
3. Step 3: Cross multiply
   52,412.86x = 72,328.71 × 28,539.82
4. Step 4: Simplify right side
   52,412.86x = 2,064,248,364.23
5. Step 5: Solve for x
   x = 2,064,248,364.23/52,412.86
6. Step 6: Final answer
   x = 39,384.39