Finding the Fourth Proportional to 69,100.42, 103,650.60 and 19,180.51

Step by Step Solution

1. Step 1: Write the proportion equation
   69,100.42 : 103,650.60 = 19,180.51 : x
2. Step 2: Convert to fraction form
   69,100.42/103,650.60 = 19,180.51/x
3. Step 3: Cross multiply
   69,100.42x = 103,650.60 × 19,180.51
4. Step 4: Simplify right side
   69,100.42x = 1,988,071,369.81
5. Step 5: Solve for x
   x = 1,988,071,369.81/69,100.42
6. Step 6: Final answer
   x = 28,770.76