Finding the Fourth Proportional to 492,784.59, 739,256.86 and 193,102.72

Step by Step Solution

1. Step 1: Write the proportion equation
   492,784.59 : 739,256.86 = 193,102.72 : x
2. Step 2: Convert to fraction form
   492,784.59/739,256.86 = 193,102.72/x
3. Step 3: Cross multiply
   492,784.59x = 739,256.86 × 193,102.72
4. Step 4: Simplify right side
   492,784.59x = 142,752,508,837.90
5. Step 5: Solve for x
   x = 142,752,508,837.90/492,784.59
6. Step 6: Final answer
   x = 289,685.41