Finding the Fourth Proportional to 28,153.96, 42,242.69 and 12,350.84

Step by Step Solution

1. Step 1: Write the proportion equation
   28,153.96 : 42,242.69 = 12,350.84 : x
2. Step 2: Convert to fraction form
   28,153.96/42,242.69 = 12,350.84/x
3. Step 3: Cross multiply
   28,153.96x = 42,242.69 × 12,350.84
4. Step 4: Simplify right side
   28,153.96x = 521,732,525.02
5. Step 5: Solve for x
   x = 521,732,525.02/28,153.96
6. Step 6: Final answer
   x = 18,531.41