Finding the Fourth Proportional to 19,640.17, 29,460.71 and 5,601.45

Step by Step Solution

1. Step 1: Write the proportion equation
   19,640.17 : 29,460.71 = 5,601.45 : x
2. Step 2: Convert to fraction form
   19,640.17/29,460.71 = 5,601.45/x
3. Step 3: Cross multiply
   19,640.17x = 29,460.71 × 5,601.45
4. Step 4: Simplify right side
   19,640.17x = 165,022,818.51
5. Step 5: Solve for x
   x = 165,022,818.51/19,640.17
6. Step 6: Final answer
   x = 8,402.31