Finding the Fourth Proportional to 52,403.30, 72,316.89 and 28,530.22

Step by Step Solution

1. Step 1: Write the proportion equation
   52,403.30 : 72,316.89 = 28,530.22 : x
2. Step 2: Convert to fraction form
   52,403.30/72,316.89 = 28,530.22/x
3. Step 3: Cross multiply
   52,403.30x = 72,316.89 × 28,530.22
4. Step 4: Simplify right side
   52,403.30x = 2,063,216,638.76
5. Step 5: Solve for x
   x = 2,063,216,638.76/52,403.30
6. Step 6: Final answer
   x = 39,371.88