Finding the Fourth Proportional to 69,439.36, 104,100.56 and 56,259.04

Step by Step Solution

1. Step 1: Write the proportion equation
   69,439.36 : 104,100.56 = 56,259.04 : x
2. Step 2: Convert to fraction form
   69,439.36/104,100.56 = 56,259.04/x
3. Step 3: Cross multiply
   69,439.36x = 104,100.56 × 56,259.04
4. Step 4: Simplify right side
   69,439.36x = 5,856,597,569.06
5. Step 5: Solve for x
   x = 5,856,597,569.06/69,439.36
6. Step 6: Final answer
   x = 84,341.18