Finding the Fourth Proportional to 13,900.06, 19,182.12 and 7,526.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.06 : 19,182.12 = 7,526.72 : x
2. Step 2: Convert to fraction form
   13,900.06/19,182.12 = 7,526.72/x
3. Step 3: Cross multiply
   13,900.06x = 19,182.12 × 7,526.72
4. Step 4: Simplify right side
   13,900.06x = 144,378,465.98
5. Step 5: Solve for x
   x = 144,378,465.98/13,900.06
6. Step 6: Final answer
   x = 10,386.90