Finding the Fourth Proportional to 42,462.81, 63,695.64 and 19,089.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,462.81 : 63,695.64 = 19,089.33 : x
2. Step 2: Convert to fraction form
   42,462.81/63,695.64 = 19,089.33/x
3. Step 3: Cross multiply
   42,462.81x = 63,695.64 × 19,089.33
4. Step 4: Simplify right side
   42,462.81x = 1,215,907,091.52
5. Step 5: Solve for x
   x = 1,215,907,091.52/42,462.81
6. Step 6: Final answer
   x = 28,634.64