Finding the Fourth Proportional to 35,969.15, 53,969.27 and 19,309.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,969.15 : 53,969.27 = 19,309.72 : x
2. Step 2: Convert to fraction form
   35,969.15/53,969.27 = 19,309.72/x
3. Step 3: Cross multiply
   35,969.15x = 53,969.27 × 19,309.72
4. Step 4: Simplify right side
   35,969.15x = 1,042,131,492.30
5. Step 5: Solve for x
   x = 1,042,131,492.30/35,969.15
6. Step 6: Final answer
   x = 28,972.93