Finding the Fourth Proportional to 212,164.47, 292,784.49 and 116,665.47

Step by Step Solution

1. Step 1: Write the proportion equation
   212,164.47 : 292,784.49 = 116,665.47 : x
2. Step 2: Convert to fraction form
   212,164.47/292,784.49 = 116,665.47/x
3. Step 3: Cross multiply
   212,164.47x = 292,784.49 × 116,665.47
4. Step 4: Simplify right side
   212,164.47x = 34,157,840,134.56
5. Step 5: Solve for x
   x = 34,157,840,134.56/212,164.47
6. Step 6: Final answer
   x = 160,996.99