Finding the Fourth Proportional to 14,061.40, 19,409.34 and 9,870.68

Step by Step Solution

1. Step 1: Write the proportion equation
   14,061.40 : 19,409.34 = 9,870.68 : x
2. Step 2: Convert to fraction form
   14,061.40/19,409.34 = 9,870.68/x
3. Step 3: Cross multiply
   14,061.40x = 19,409.34 × 9,870.68
4. Step 4: Simplify right side
   14,061.40x = 191,583,384.15
5. Step 5: Solve for x
   x = 191,583,384.15/14,061.40
6. Step 6: Final answer
   x = 13,624.77