Finding the Fourth Proportional to 12,973.50, 19,429.08 and 7,409.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973.50 : 19,429.08 = 7,409.98 : x
2. Step 2: Convert to fraction form
   12,973.50/19,429.08 = 7,409.98/x
3. Step 3: Cross multiply
   12,973.50x = 19,429.08 × 7,409.98
4. Step 4: Simplify right side
   12,973.50x = 143,969,094.22
5. Step 5: Solve for x
   x = 143,969,094.22/12,973.50
6. Step 6: Final answer
   x = 11,097.17