Finding the Fourth Proportional to 13,077.05, 19,609.43 and 5,075.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.05 : 19,609.43 = 5,075.60 : x
2. Step 2: Convert to fraction form
   13,077.05/19,609.43 = 5,075.60/x
3. Step 3: Cross multiply
   13,077.05x = 19,609.43 × 5,075.60
4. Step 4: Simplify right side
   13,077.05x = 99,529,499.48
5. Step 5: Solve for x
   x = 99,529,499.48/13,077.05
6. Step 6: Final answer
   x = 7,611.01