Finding the Fourth Proportional to 13,877.78, 19,151.67 and 7,910.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,877.78 : 19,151.67 = 7,910.00 : x
2. Step 2: Convert to fraction form
   13,877.78/19,151.67 = 7,910.00/x
3. Step 3: Cross multiply
   13,877.78x = 19,151.67 × 7,910.00
4. Step 4: Simplify right side
   13,877.78x = 151,489,756.41
5. Step 5: Solve for x
   x = 151,489,756.41/13,877.78
6. Step 6: Final answer
   x = 10,915.99