Finding the Fourth Proportional to 13,307.07, 19,962.42 and 4,539.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,307.07 : 19,962.42 = 4,539.63 : x
2. Step 2: Convert to fraction form
   13,307.07/19,962.42 = 4,539.63/x
3. Step 3: Cross multiply
   13,307.07x = 19,962.42 × 4,539.63
4. Step 4: Simplify right side
   13,307.07x = 90,621,900.89
5. Step 5: Solve for x
   x = 90,621,900.89/13,307.07
6. Step 6: Final answer
   x = 6,810.06