Finding the Fourth Proportional to 69,211.05, 103,670.77 and 56,089.05

Step by Step Solution

1. Step 1: Write the proportion equation
   69,211.05 : 103,670.77 = 56,089.05 : x
2. Step 2: Convert to fraction form
   69,211.05/103,670.77 = 56,089.05/x
3. Step 3: Cross multiply
   69,211.05x = 103,670.77 × 56,089.05
4. Step 4: Simplify right side
   69,211.05x = 5,814,795,002.07
5. Step 5: Solve for x
   x = 5,814,795,002.07/69,211.05
6. Step 6: Final answer
   x = 84,015.41