Finding the Fourth Proportional to 69,185.81, 103,776.90 and 19,263.89

Step by Step Solution

1. Step 1: Write the proportion equation
   69,185.81 : 103,776.90 = 19,263.89 : x
2. Step 2: Convert to fraction form
   69,185.81/103,776.90 = 19,263.89/x
3. Step 3: Cross multiply
   69,185.81x = 103,776.90 × 19,263.89
4. Step 4: Simplify right side
   69,185.81x = 1,999,146,973.34
5. Step 5: Solve for x
   x = 1,999,146,973.34/69,185.81
6. Step 6: Final answer
   x = 28,895.33