Finding the Fourth Proportional to 13,878.48, 19,152.55 and 7,910.53

Step by Step Solution

1. Step 1: Write the proportion equation
   13,878.48 : 19,152.55 = 7,910.53 : x
2. Step 2: Convert to fraction form
   13,878.48/19,152.55 = 7,910.53/x
3. Step 3: Cross multiply
   13,878.48x = 19,152.55 × 7,910.53
4. Step 4: Simplify right side
   13,878.48x = 151,506,783.36
5. Step 5: Solve for x
   x = 151,506,783.36/13,878.48
6. Step 6: Final answer
   x = 10,916.67