Finding the Fourth Proportional to 43,317.69, 64,978.83 and 13,737.84

Step by Step Solution

1. Step 1: Write the proportion equation
   43,317.69 : 64,978.83 = 13,737.84 : x
2. Step 2: Convert to fraction form
   43,317.69/64,978.83 = 13,737.84/x
3. Step 3: Cross multiply
   43,317.69x = 64,978.83 × 13,737.84
4. Step 4: Simplify right side
   43,317.69x = 892,668,769.93
5. Step 5: Solve for x
   x = 892,668,769.93/43,317.69
6. Step 6: Final answer
   x = 20,607.49