Finding the Fourth Proportional to 92,815.37, 139,200.72 and 42,847.49

Step by Step Solution

1. Step 1: Write the proportion equation
   92,815.37 : 139,200.72 = 42,847.49 : x
2. Step 2: Convert to fraction form
   92,815.37/139,200.72 = 42,847.49/x
3. Step 3: Cross multiply
   92,815.37x = 139,200.72 × 42,847.49
4. Step 4: Simplify right side
   92,815.37x = 5,964,400,762.19
5. Step 5: Solve for x
   x = 5,964,400,762.19/92,815.37
6. Step 6: Final answer
   x = 64,260.92