Finding the Fourth Proportional to 510,443.91, 765,607.55 and 136,496.07

Step by Step Solution

1. Step 1: Write the proportion equation
   510,443.91 : 765,607.55 = 136,496.07 : x
2. Step 2: Convert to fraction form
   510,443.91/765,607.55 = 136,496.07/x
3. Step 3: Cross multiply
   510,443.91x = 765,607.55 × 136,496.07
4. Step 4: Simplify right side
   510,443.91x = 104,502,421,054.85
5. Step 5: Solve for x
   x = 104,502,421,054.85/510,443.91
6. Step 6: Final answer
   x = 204,728.51