Finding the Fourth Proportional to 42,826.86, 64,269.36 and 15,124.86

Step by Step Solution

1. Step 1: Write the proportion equation
   42,826.86 : 64,269.36 = 15,124.86 : x
2. Step 2: Convert to fraction form
   42,826.86/64,269.36 = 15,124.86/x
3. Step 3: Cross multiply
   42,826.86x = 64,269.36 × 15,124.86
4. Step 4: Simplify right side
   42,826.86x = 972,065,072.29
5. Step 5: Solve for x
   x = 972,065,072.29/42,826.86
6. Step 6: Final answer
   x = 22,697.56