Finding the Fourth Proportional to 13,980.39, 19,293.30 and 7,607.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,980.39 : 19,293.30 = 7,607.39 : x
2. Step 2: Convert to fraction form
   13,980.39/19,293.30 = 7,607.39/x
3. Step 3: Cross multiply
   13,980.39x = 19,293.30 × 7,607.39
4. Step 4: Simplify right side
   13,980.39x = 146,771,561.02
5. Step 5: Solve for x
   x = 146,771,561.02/13,980.39
6. Step 6: Final answer
   x = 10,498.39