Finding the Fourth Proportional to 193,662.72, 290,411.52 and 73,699.20

Step by Step Solution

1. Step 1: Write the proportion equation
   193,662.72 : 290,411.52 = 73,699.20 : x
2. Step 2: Convert to fraction form
   193,662.72/290,411.52 = 73,699.20/x
3. Step 3: Cross multiply
   193,662.72x = 290,411.52 × 73,699.20
4. Step 4: Simplify right side
   193,662.72x = 21,403,096,694.78
5. Step 5: Solve for x
   x = 21,403,096,694.78/193,662.72
6. Step 6: Final answer
   x = 110,517.38