Finding the Fourth Proportional to 19,530.42, 29,300.73 and 5,490.51

Step by Step Solution

1. Step 1: Write the proportion equation
   19,530.42 : 29,300.73 = 5,490.51 : x
2. Step 2: Convert to fraction form
   19,530.42/29,300.73 = 5,490.51/x
3. Step 3: Cross multiply
   19,530.42x = 29,300.73 × 5,490.51
4. Step 4: Simplify right side
   19,530.42x = 160,875,951.07
5. Step 5: Solve for x
   x = 160,875,951.07/19,530.42
6. Step 6: Final answer
   x = 8,237.20