Finding the Fourth Proportional to 13,845.51, 19,106.78 and 7,557.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,845.51 : 19,106.78 = 7,557.89 : x
2. Step 2: Convert to fraction form
   13,845.51/19,106.78 = 7,557.89/x
3. Step 3: Cross multiply
   13,845.51x = 19,106.78 × 7,557.89
4. Step 4: Simplify right side
   13,845.51x = 144,406,808.17
5. Step 5: Solve for x
   x = 144,406,808.17/13,845.51
6. Step 6: Final answer
   x = 10,429.87