Finding the Fourth Proportional to 42,993.69, 64,501.46 and 19,614.66

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.69 : 64,501.46 = 19,614.66 : x
2. Step 2: Convert to fraction form
   42,993.69/64,501.46 = 19,614.66/x
3. Step 3: Cross multiply
   42,993.69x = 64,501.46 × 19,614.66
4. Step 4: Simplify right side
   42,993.69x = 1,265,174,051.34
5. Step 5: Solve for x
   x = 1,265,174,051.34/42,993.69
6. Step 6: Final answer
   x = 29,426.97