Finding the Fourth Proportional to 35,608.61, 53,408.83 and 9,315.89

Step by Step Solution

1. Step 1: Write the proportion equation
   35,608.61 : 53,408.83 = 9,315.89 : x
2. Step 2: Convert to fraction form
   35,608.61/53,408.83 = 9,315.89/x
3. Step 3: Cross multiply
   35,608.61x = 53,408.83 × 9,315.89
4. Step 4: Simplify right side
   35,608.61x = 497,550,785.31
5. Step 5: Solve for x
   x = 497,550,785.31/35,608.61
6. Step 6: Final answer
   x = 13,972.77