Finding the Fourth Proportional to 69,111.24, 103,666.32 and 19,192.02

Step by Step Solution

1. Step 1: Write the proportion equation
   69,111.24 : 103,666.32 = 19,192.02 : x
2. Step 2: Convert to fraction form
   69,111.24/103,666.32 = 19,192.02/x
3. Step 3: Cross multiply
   69,111.24x = 103,666.32 × 19,192.02
4. Step 4: Simplify right side
   69,111.24x = 1,989,566,086.77
5. Step 5: Solve for x
   x = 1,989,566,086.77/69,111.24
6. Step 6: Final answer
   x = 28,787.88