Finding the Fourth Proportional to 52,856.10, 72,943.74 and 28,984.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,856.10 : 72,943.74 = 28,984.50 : x
2. Step 2: Convert to fraction form
   52,856.10/72,943.74 = 28,984.50/x
3. Step 3: Cross multiply
   52,856.10x = 72,943.74 × 28,984.50
4. Step 4: Simplify right side
   52,856.10x = 2,114,237,832.03
5. Step 5: Solve for x
   x = 2,114,237,832.03/52,856.10
6. Step 6: Final answer
   x = 39,999.88