Finding the Fourth Proportional to 19,876.94, 29,815.28 and 5,085.83

Step by Step Solution

1. Step 1: Write the proportion equation
   19,876.94 : 29,815.28 = 5,085.83 : x
2. Step 2: Convert to fraction form
   19,876.94/29,815.28 = 5,085.83/x
3. Step 3: Cross multiply
   19,876.94x = 29,815.28 × 5,085.83
4. Step 4: Simplify right side
   19,876.94x = 151,635,270.98
5. Step 5: Solve for x
   x = 151,635,270.98/19,876.94
6. Step 6: Final answer
   x = 7,628.70