Finding the Fourth Proportional to 14,158.52, 19,538.25 and 7,870.76

Step by Step Solution

1. Step 1: Write the proportion equation
   14,158.52 : 19,538.25 = 7,870.76 : x
2. Step 2: Convert to fraction form
   14,158.52/19,538.25 = 7,870.76/x
3. Step 3: Cross multiply
   14,158.52x = 19,538.25 × 7,870.76
4. Step 4: Simplify right side
   14,158.52x = 153,780,876.57
5. Step 5: Solve for x
   x = 153,780,876.57/14,158.52
6. Step 6: Final answer
   x = 10,861.37