Finding the Fourth Proportional to 13,045.86, 18,002.79 and 7,077.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,045.86 : 18,002.79 = 7,077.32 : x
2. Step 2: Convert to fraction form
   13,045.86/18,002.79 = 7,077.32/x
3. Step 3: Cross multiply
   13,045.86x = 18,002.79 × 7,077.32
4. Step 4: Simplify right side
   13,045.86x = 127,411,505.72
5. Step 5: Solve for x
   x = 127,411,505.72/13,045.86
6. Step 6: Final answer
   x = 9,766.43