Finding the Fourth Proportional to 51,499, 71,060.40 and 28,838.98

Step by Step Solution

1. Step 1: Write the proportion equation
   51,499 : 71,060.40 = 28,838.98 : x
2. Step 2: Convert to fraction form
   51,499/71,060.40 = 28,838.98/x
3. Step 3: Cross multiply
   51,499x = 71,060.40 × 28,838.98
4. Step 4: Simplify right side
   51,499x = 2,049,309,454.39
5. Step 5: Solve for x
   x = 2,049,309,454.39/51,499
6. Step 6: Final answer
   x = 39,793.19