Finding the Fourth Proportional to 19,410.96, 29,111.40 and 5,556.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,410.96 : 29,111.40 = 5,556.72 : x
2. Step 2: Convert to fraction form
   19,410.96/29,111.40 = 5,556.72/x
3. Step 3: Cross multiply
   19,410.96x = 29,111.40 × 5,556.72
4. Step 4: Simplify right side
   19,410.96x = 161,763,898.61
5. Step 5: Solve for x
   x = 161,763,898.61/19,410.96
6. Step 6: Final answer
   x = 8,333.64