Finding the Fourth Proportional to 37,131.12, 55,696.56 and 9,429.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,131.12 : 55,696.56 = 9,429.12 : x
2. Step 2: Convert to fraction form
   37,131.12/55,696.56 = 9,429.12/x
3. Step 3: Cross multiply
   37,131.12x = 55,696.56 × 9,429.12
4. Step 4: Simplify right side
   37,131.12x = 525,169,547.83
5. Step 5: Solve for x
   x = 525,169,547.83/37,131.12
6. Step 6: Final answer
   x = 14,143.65