Finding the Fourth Proportional to 69,899.35, 104,761.59 and 55,049.62

Step by Step Solution

1. Step 1: Write the proportion equation
   69,899.35 : 104,761.59 = 55,049.62 : x
2. Step 2: Convert to fraction form
   69,899.35/104,761.59 = 55,049.62/x
3. Step 3: Cross multiply
   69,899.35x = 104,761.59 × 55,049.62
4. Step 4: Simplify right side
   69,899.35x = 5,767,085,720.10
5. Step 5: Solve for x
   x = 5,767,085,720.10/69,899.35
6. Step 6: Final answer
   x = 82,505.57