Finding the Fourth Proportional to 52,860.47, 72,949.55 and 28,988.00

Step by Step Solution

1. Step 1: Write the proportion equation
   52,860.47 : 72,949.55 = 28,988.00 : x
2. Step 2: Convert to fraction form
   52,860.47/72,949.55 = 28,988.00/x
3. Step 3: Cross multiply
   52,860.47x = 72,949.55 × 28,988.00
4. Step 4: Simplify right side
   52,860.47x = 2,114,661,045.71
5. Step 5: Solve for x
   x = 2,114,661,045.71/52,860.47
6. Step 6: Final answer
   x = 40,004.59