Finding the Fourth Proportional to 191,061.36, 286,554.72 and 181,578.12

Step by Step Solution

1. Step 1: Write the proportion equation
   191,061.36 : 286,554.72 = 181,578.12 : x
2. Step 2: Convert to fraction form
   191,061.36/286,554.72 = 181,578.12/x
3. Step 3: Cross multiply
   191,061.36x = 286,554.72 × 181,578.12
4. Step 4: Simplify right side
   191,061.36x = 52,032,067,334.73
5. Step 5: Solve for x
   x = 52,032,067,334.73/191,061.36
6. Step 6: Final answer
   x = 272,331.71