Finding the Fourth Proportional to 13,009.83, 17,953.73 and 7,903.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,009.83 : 17,953.73 = 7,903.89 : x
2. Step 2: Convert to fraction form
   13,009.83/17,953.73 = 7,903.89/x
3. Step 3: Cross multiply
   13,009.83x = 17,953.73 × 7,903.89
4. Step 4: Simplify right side
   13,009.83x = 141,904,267.49
5. Step 5: Solve for x
   x = 141,904,267.49/13,009.83
6. Step 6: Final answer
   x = 10,907.47