Finding the Fourth Proportional to 28,141.96, 42,188.10 and 10,624.09

Step by Step Solution

1. Step 1: Write the proportion equation
   28,141.96 : 42,188.10 = 10,624.09 : x
2. Step 2: Convert to fraction form
   28,141.96/42,188.10 = 10,624.09/x
3. Step 3: Cross multiply
   28,141.96x = 42,188.10 × 10,624.09
4. Step 4: Simplify right side
   28,141.96x = 448,210,171.33
5. Step 5: Solve for x
   x = 448,210,171.33/28,141.96
6. Step 6: Final answer
   x = 15,926.76