Finding the Fourth Proportional to 12,693.69, 19,030.14 and 8,520.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,693.69 : 19,030.14 = 8,520.93 : x
2. Step 2: Convert to fraction form
   12,693.69/19,030.14 = 8,520.93/x
3. Step 3: Cross multiply
   12,693.69x = 19,030.14 × 8,520.93
4. Step 4: Simplify right side
   12,693.69x = 162,154,490.83
5. Step 5: Solve for x
   x = 162,154,490.83/12,693.69
6. Step 6: Final answer
   x = 12,774.42