Finding the Fourth Proportional to 52,863.34, 72,952.42 and 28,988.60

Step by Step Solution

1. Step 1: Write the proportion equation
   52,863.34 : 72,952.42 = 28,988.60 : x
2. Step 2: Convert to fraction form
   52,863.34/72,952.42 = 28,988.60/x
3. Step 3: Cross multiply
   52,863.34x = 72,952.42 × 28,988.60
4. Step 4: Simplify right side
   52,863.34x = 2,114,788,522.41
5. Step 5: Solve for x
   x = 2,114,788,522.41/52,863.34
6. Step 6: Final answer
   x = 40,004.82