Finding the Fourth Proportional to 13,875.02, 19,147.55 and 7,906.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,875.02 : 19,147.55 = 7,906.67 : x
2. Step 2: Convert to fraction form
   13,875.02/19,147.55 = 7,906.67/x
3. Step 3: Cross multiply
   13,875.02x = 19,147.55 × 7,906.67
4. Step 4: Simplify right side
   13,875.02x = 151,393,223.89
5. Step 5: Solve for x
   x = 151,393,223.89/13,875.02
6. Step 6: Final answer
   x = 10,911.21