Finding the Fourth Proportional to 19,612.36, 29,409.30 and 7,123.58

Step by Step Solution

1. Step 1: Write the proportion equation
   19,612.36 : 29,409.30 = 7,123.58 : x
2. Step 2: Convert to fraction form
   19,612.36/29,409.30 = 7,123.58/x
3. Step 3: Cross multiply
   19,612.36x = 29,409.30 × 7,123.58
4. Step 4: Simplify right side
   19,612.36x = 209,499,477.89
5. Step 5: Solve for x
   x = 209,499,477.89/19,612.36
6. Step 6: Final answer
   x = 10,682.01