Finding the Fourth Proportional to 540,109.62, 810,164.70 and 140,749.38

Step by Step Solution

1. Step 1: Write the proportion equation
   540,109.62 : 810,164.70 = 140,749.38 : x
2. Step 2: Convert to fraction form
   540,109.62/810,164.70 = 140,749.38/x
3. Step 3: Cross multiply
   540,109.62x = 810,164.70 × 140,749.38
4. Step 4: Simplify right side
   540,109.62x = 114,030,179,222.89
5. Step 5: Solve for x
   x = 114,030,179,222.89/540,109.62
6. Step 6: Final answer
   x = 211,124.14