Finding the Fourth Proportional to 13,845.13, 19,106.18 and 7,557.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,845.13 : 19,106.18 = 7,557.50 : x
2. Step 2: Convert to fraction form
   13,845.13/19,106.18 = 7,557.50/x
3. Step 3: Cross multiply
   13,845.13x = 19,106.18 × 7,557.50
4. Step 4: Simplify right side
   13,845.13x = 144,394,993.67
5. Step 5: Solve for x
   x = 144,394,993.67/13,845.13
6. Step 6: Final answer
   x = 10,429.30