Finding the Fourth Proportional to 51,123, 70,549.74 and 28,767.48

Step by Step Solution

1. Step 1: Write the proportion equation
   51,123 : 70,549.74 = 28,767.48 : x
2. Step 2: Convert to fraction form
   51,123/70,549.74 = 28,767.48/x
3. Step 3: Cross multiply
   51,123x = 70,549.74 × 28,767.48
4. Step 4: Simplify right side
   51,123x = 2,029,538,234.46
5. Step 5: Solve for x
   x = 2,029,538,234.46/51,123
6. Step 6: Final answer
   x = 39,699.12