Finding the Fourth Proportional to 492,308.16, 738,468.12 and 137,300.58

Step by Step Solution

1. Step 1: Write the proportion equation
   492,308.16 : 738,468.12 = 137,300.58 : x
2. Step 2: Convert to fraction form
   492,308.16/738,468.12 = 137,300.58/x
3. Step 3: Cross multiply
   492,308.16x = 738,468.12 × 137,300.58
4. Step 4: Simplify right side
   492,308.16x = 101,392,101,187.51
5. Step 5: Solve for x
   x = 101,392,101,187.51/492,308.16
6. Step 6: Final answer
   x = 205,952.51