Finding the Fourth Proportional to 69,420.67, 104,131.34 and 16,830.15

Step by Step Solution

1. Step 1: Write the proportion equation
   69,420.67 : 104,131.34 = 16,830.15 : x
2. Step 2: Convert to fraction form
   69,420.67/104,131.34 = 16,830.15/x
3. Step 3: Cross multiply
   69,420.67x = 104,131.34 × 16,830.15
4. Step 4: Simplify right side
   69,420.67x = 1,752,546,071.90
5. Step 5: Solve for x
   x = 1,752,546,071.90/69,420.67
6. Step 6: Final answer
   x = 25,245.31