Finding the Fourth Proportional to 69,320.37, 103,980.58 and 19,407.83

Step by Step Solution

1. Step 1: Write the proportion equation
   69,320.37 : 103,980.58 = 19,407.83 : x
2. Step 2: Convert to fraction form
   69,320.37/103,980.58 = 19,407.83/x
3. Step 3: Cross multiply
   69,320.37x = 103,980.58 × 19,407.83
4. Step 4: Simplify right side
   69,320.37x = 2,018,036,851.52
5. Step 5: Solve for x
   x = 2,018,036,851.52/69,320.37
6. Step 6: Final answer
   x = 29,111.74