Finding the Fourth Proportional to 12,047.60, 18,066.78 and 5,030.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.60 : 18,066.78 = 5,030.91 : x
2. Step 2: Convert to fraction form
   12,047.60/18,066.78 = 5,030.91/x
3. Step 3: Cross multiply
   12,047.60x = 18,066.78 × 5,030.91
4. Step 4: Simplify right side
   12,047.60x = 90,892,344.17
5. Step 5: Solve for x
   x = 90,892,344.17/12,047.60
6. Step 6: Final answer
   x = 7,544.44