Finding the Fourth Proportional to 28,091.34, 42,141.57 and 10,562.58

Step by Step Solution

1. Step 1: Write the proportion equation
   28,091.34 : 42,141.57 = 10,562.58 : x
2. Step 2: Convert to fraction form
   28,091.34/42,141.57 = 10,562.58/x
3. Step 3: Cross multiply
   28,091.34x = 42,141.57 × 10,562.58
4. Step 4: Simplify right side
   28,091.34x = 445,123,704.45
5. Step 5: Solve for x
   x = 445,123,704.45/28,091.34
6. Step 6: Final answer
   x = 15,845.58