Finding the Fourth Proportional to 290,801.35, 436,023.42 and 113,101.30

Step by Step Solution

1. Step 1: Write the proportion equation
   290,801.35 : 436,023.42 = 113,101.30 : x
2. Step 2: Convert to fraction form
   290,801.35/436,023.42 = 113,101.30/x
3. Step 3: Cross multiply
   290,801.35x = 436,023.42 × 113,101.30
4. Step 4: Simplify right side
   290,801.35x = 49,314,815,632.45
5. Step 5: Solve for x
   x = 49,314,815,632.45/290,801.35
6. Step 6: Final answer
   x = 169,582.49