Finding the Fourth Proportional to 392,091.47, 588,144.51 and 111,616.01

Step by Step Solution

1. Step 1: Write the proportion equation
   392,091.47 : 588,144.51 = 111,616.01 : x
2. Step 2: Convert to fraction form
   392,091.47/588,144.51 = 111,616.01/x
3. Step 3: Cross multiply
   392,091.47x = 588,144.51 × 111,616.01
4. Step 4: Simplify right side
   392,091.47x = 65,646,342,774.42
5. Step 5: Solve for x
   x = 65,646,342,774.42/392,091.47
6. Step 6: Final answer
   x = 167,426.09