Finding the Fourth Proportional to 191,019.23, 286,491.78 and 181,536.15

Step by Step Solution

1. Step 1: Write the proportion equation
   191,019.23 : 286,491.78 = 181,536.15 : x
2. Step 2: Convert to fraction form
   191,019.23/286,491.78 = 181,536.15/x
3. Step 3: Cross multiply
   191,019.23x = 286,491.78 × 181,536.15
4. Step 4: Simplify right side
   191,019.23x = 52,008,614,747.85
5. Step 5: Solve for x
   x = 52,008,614,747.85/191,019.23
6. Step 6: Final answer
   x = 272,269.01