Finding the Fourth Proportional to 13,526.10, 18,666.10 and 7,557.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,526.10 : 18,666.10 = 7,557.82 : x
2. Step 2: Convert to fraction form
   13,526.10/18,666.10 = 7,557.82/x
3. Step 3: Cross multiply
   13,526.10x = 18,666.10 × 7,557.82
4. Step 4: Simplify right side
   13,526.10x = 141,075,023.90
5. Step 5: Solve for x
   x = 141,075,023.90/13,526.10
6. Step 6: Final answer
   x = 10,429.84