Finding the Fourth Proportional to 14,130.31, 19,500.74 and 7,842.69

Step by Step Solution

1. Step 1: Write the proportion equation
   14,130.31 : 19,500.74 = 7,842.69 : x
2. Step 2: Convert to fraction form
   14,130.31/19,500.74 = 7,842.69/x
3. Step 3: Cross multiply
   14,130.31x = 19,500.74 × 7,842.69
4. Step 4: Simplify right side
   14,130.31x = 152,938,258.59
5. Step 5: Solve for x
   x = 152,938,258.59/14,130.31
6. Step 6: Final answer
   x = 10,823.42