Finding the Fourth Proportional to 52,870.46, 72,963.34 and 28,998

Step by Step Solution

1. Step 1: Write the proportion equation
   52,870.46 : 72,963.34 = 28,998 : x
2. Step 2: Convert to fraction form
   52,870.46/72,963.34 = 28,998/x
3. Step 3: Cross multiply
   52,870.46x = 72,963.34 × 28,998
4. Step 4: Simplify right side
   52,870.46x = 2,115,790,933.32
5. Step 5: Solve for x
   x = 2,115,790,933.32/52,870.46
6. Step 6: Final answer
   x = 40,018.39