Finding the Fourth Proportional to 14,158.44, 19,538.60 and 7,870.82

Step by Step Solution

1. Step 1: Write the proportion equation
   14,158.44 : 19,538.60 = 7,870.82 : x
2. Step 2: Convert to fraction form
   14,158.44/19,538.60 = 7,870.82/x
3. Step 3: Cross multiply
   14,158.44x = 19,538.60 × 7,870.82
4. Step 4: Simplify right side
   14,158.44x = 153,784,666.60
5. Step 5: Solve for x
   x = 153,784,666.60/14,158.44
6. Step 6: Final answer
   x = 10,861.70