Finding the Fourth Proportional to 42,276.82, 63,390.57 and 28,252.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,276.82 : 63,390.57 = 28,252.69 : x
2. Step 2: Convert to fraction form
   42,276.82/63,390.57 = 28,252.69/x
3. Step 3: Cross multiply
   42,276.82x = 63,390.57 × 28,252.69
4. Step 4: Simplify right side
   42,276.82x = 1,790,954,123.13
5. Step 5: Solve for x
   x = 1,790,954,123.13/42,276.82
6. Step 6: Final answer
   x = 42,362.56