Finding the Fourth Proportional to 69,325.89, 103,980.80 and 19,409.98

Step by Step Solution

1. Step 1: Write the proportion equation
   69,325.89 : 103,980.80 = 19,409.98 : x
2. Step 2: Convert to fraction form
   69,325.89/103,980.80 = 19,409.98/x
3. Step 3: Cross multiply
   69,325.89x = 103,980.80 × 19,409.98
4. Step 4: Simplify right side
   69,325.89x = 2,018,264,891.38
5. Step 5: Solve for x
   x = 2,018,264,891.38/69,325.89
6. Step 6: Final answer
   x = 29,112.72