Finding the Fourth Proportional to 13,020.83, 19,538.13 and 7,101.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.83 : 19,538.13 = 7,101.98 : x
2. Step 2: Convert to fraction form
   13,020.83/19,538.13 = 7,101.98/x
3. Step 3: Cross multiply
   13,020.83x = 19,538.13 × 7,101.98
4. Step 4: Simplify right side
   13,020.83x = 138,759,408.50
5. Step 5: Solve for x
   x = 138,759,408.50/13,020.83
6. Step 6: Final answer
   x = 10,656.73