Finding the Fourth Proportional to 35,608.76, 53,375.47 and 13,412.53

Step by Step Solution

1. Step 1: Write the proportion equation
   35,608.76 : 53,375.47 = 13,412.53 : x
2. Step 2: Convert to fraction form
   35,608.76/53,375.47 = 13,412.53/x
3. Step 3: Cross multiply
   35,608.76x = 53,375.47 × 13,412.53
4. Step 4: Simplify right side
   35,608.76x = 715,899,925.67
5. Step 5: Solve for x
   x = 715,899,925.67/35,608.76
6. Step 6: Final answer
   x = 20,104.60