Finding the Fourth Proportional to 8,498.17, 11,729.15 and 5,430.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,498.17 : 11,729.15 = 5,430.06 : x
2. Step 2: Convert to fraction form
   8,498.17/11,729.15 = 5,430.06/x
3. Step 3: Cross multiply
   8,498.17x = 11,729.15 × 5,430.06
4. Step 4: Simplify right side
   8,498.17x = 63,689,980.38
5. Step 5: Solve for x
   x = 63,689,980.38/8,498.17
6. Step 6: Final answer
   x = 7,494.55