Finding the Fourth Proportional to 492,051.30, 737,976.15 and 136,976.10

Step by Step Solution

1. Step 1: Write the proportion equation
   492,051.30 : 737,976.15 = 136,976.10 : x
2. Step 2: Convert to fraction form
   492,051.30/737,976.15 = 136,976.10/x
3. Step 3: Cross multiply
   492,051.30x = 737,976.15 × 136,976.10
4. Step 4: Simplify right side
   492,051.30x = 101,085,094,920.02
5. Step 5: Solve for x
   x = 101,085,094,920.02/492,051.30
6. Step 6: Final answer
   x = 205,436.09