Finding the Fourth Proportional to 69,056.01, 103,589.89 and 19,136.12

Step by Step Solution

1. Step 1: Write the proportion equation
   69,056.01 : 103,589.89 = 19,136.12 : x
2. Step 2: Convert to fraction form
   69,056.01/103,589.89 = 19,136.12/x
3. Step 3: Cross multiply
   69,056.01x = 103,589.89 × 19,136.12
4. Step 4: Simplify right side
   69,056.01x = 1,982,308,000.04
5. Step 5: Solve for x
   x = 1,982,308,000.04/69,056.01
6. Step 6: Final answer
   x = 28,705.80