Finding the Fourth Proportional to 19,900.22, 29,840.05 and 5,858.42

Step by Step Solution

1. Step 1: Write the proportion equation
   19,900.22 : 29,840.05 = 5,858.42 : x
2. Step 2: Convert to fraction form
   19,900.22/29,840.05 = 5,858.42/x
3. Step 3: Cross multiply
   19,900.22x = 29,840.05 × 5,858.42
4. Step 4: Simplify right side
   19,900.22x = 174,815,545.72
5. Step 5: Solve for x
   x = 174,815,545.72/19,900.22
6. Step 6: Final answer
   x = 8,784.60