Finding the Fourth Proportional to 13,930.76, 19,224.18 and 7,880.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,930.76 : 19,224.18 = 7,880.93 : x
2. Step 2: Convert to fraction form
   13,930.76/19,224.18 = 7,880.93/x
3. Step 3: Cross multiply
   13,930.76x = 19,224.18 × 7,880.93
4. Step 4: Simplify right side
   13,930.76x = 151,504,416.89
5. Step 5: Solve for x
   x = 151,504,416.89/13,930.76
6. Step 6: Final answer
   x = 10,875.53