Finding the Fourth Proportional to 13,878.50, 19,152.42 and 7,505.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,878.50 : 19,152.42 = 7,505.08 : x
2. Step 2: Convert to fraction form
   13,878.50/19,152.42 = 7,505.08/x
3. Step 3: Cross multiply
   13,878.50x = 19,152.42 × 7,505.08
4. Step 4: Simplify right side
   13,878.50x = 143,740,368.27
5. Step 5: Solve for x
   x = 143,740,368.27/13,878.50
6. Step 6: Final answer
   x = 10,357.06