Finding the Fourth Proportional to 14,059.50, 19,402.47 and 8,470.86

Step by Step Solution

1. Step 1: Write the proportion equation
   14,059.50 : 19,402.47 = 8,470.86 : x
2. Step 2: Convert to fraction form
   14,059.50/19,402.47 = 8,470.86/x
3. Step 3: Cross multiply
   14,059.50x = 19,402.47 × 8,470.86
4. Step 4: Simplify right side
   14,059.50x = 164,355,607.02
5. Step 5: Solve for x
   x = 164,355,607.02/14,059.50
6. Step 6: Final answer
   x = 11,690.00