Finding the Fourth Proportional to 290,767.86, 435,973.23 and 113,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   290,767.86 : 435,973.23 = 113,067.72 : x
2. Step 2: Convert to fraction form
   290,767.86/435,973.23 = 113,067.72/x
3. Step 3: Cross multiply
   290,767.86x = 435,973.23 × 113,067.72
4. Step 4: Simplify right side
   290,767.86x = 49,294,499,097.14
5. Step 5: Solve for x
   x = 49,294,499,097.14/290,767.86
6. Step 6: Final answer
   x = 169,532.15