Finding the Fourth Proportional to 492,055.30, 737,982.15 and 136,980.10

Step by Step Solution

1. Step 1: Write the proportion equation
   492,055.30 : 737,982.15 = 136,980.10 : x
2. Step 2: Convert to fraction form
   492,055.30/737,982.15 = 136,980.10/x
3. Step 3: Cross multiply
   492,055.30x = 737,982.15 × 136,980.10
4. Step 4: Simplify right side
   492,055.30x = 101,088,868,705.22
5. Step 5: Solve for x
   x = 101,088,868,705.22/492,055.30
6. Step 6: Final answer
   x = 205,442.09