Finding the Fourth Proportional to 12,369.69, 17,070.71 and 7,064.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,369.69 : 17,070.71 = 7,064.91 : x
2. Step 2: Convert to fraction form
   12,369.69/17,070.71 = 7,064.91/x
3. Step 3: Cross multiply
   12,369.69x = 17,070.71 × 7,064.91
4. Step 4: Simplify right side
   12,369.69x = 120,602,994.46
5. Step 5: Solve for x
   x = 120,602,994.46/12,369.69
6. Step 6: Final answer
   x = 9,749.88