Finding the Fourth Proportional to 11,570.45, 17,342.55 and 4,902.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,570.45 : 17,342.55 = 4,902.79 : x
2. Step 2: Convert to fraction form
   11,570.45/17,342.55 = 4,902.79/x
3. Step 3: Cross multiply
   11,570.45x = 17,342.55 × 4,902.79
4. Step 4: Simplify right side
   11,570.45x = 85,026,890.82
5. Step 5: Solve for x
   x = 85,026,890.82/11,570.45
6. Step 6: Final answer
   x = 7,348.63