Finding the Fourth Proportional to 11,780.02, 17,667.29 and 3,457.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,780.02 : 17,667.29 = 3,457.81 : x
2. Step 2: Convert to fraction form
   11,780.02/17,667.29 = 3,457.81/x
3. Step 3: Cross multiply
   11,780.02x = 17,667.29 × 3,457.81
4. Step 4: Simplify right side
   11,780.02x = 61,090,136.83
5. Step 5: Solve for x
   x = 61,090,136.83/11,780.02
6. Step 6: Final answer
   x = 5,185.91