Finding the Fourth Proportional to 52,490.73, 72,438.00 and 28,617.81

Step by Step Solution

1. Step 1: Write the proportion equation
   52,490.73 : 72,438.00 = 28,617.81 : x
2. Step 2: Convert to fraction form
   52,490.73/72,438.00 = 28,617.81/x
3. Step 3: Cross multiply
   52,490.73x = 72,438.00 × 28,617.81
4. Step 4: Simplify right side
   52,490.73x = 2,073,016,541.82
5. Step 5: Solve for x
   x = 2,073,016,541.82/52,490.73
6. Step 6: Final answer
   x = 39,493.00