Finding the Fourth Proportional to 35,339.82, 53,012.32 and 13,153.19

Step by Step Solution

1. Step 1: Write the proportion equation
   35,339.82 : 53,012.32 = 13,153.19 : x
2. Step 2: Convert to fraction form
   35,339.82/53,012.32 = 13,153.19/x
3. Step 3: Cross multiply
   35,339.82x = 53,012.32 × 13,153.19
4. Step 4: Simplify right side
   35,339.82x = 697,281,117.30
5. Step 5: Solve for x
   x = 697,281,117.30/35,339.82
6. Step 6: Final answer
   x = 19,730.75