Finding the Fourth Proportional to 56,840, 85,290.72 and 27,656

Step by Step Solution

1. Step 1: Write the proportion equation
   56,840 : 85,290.72 = 27,656 : x
2. Step 2: Convert to fraction form
   56,840/85,290.72 = 27,656/x
3. Step 3: Cross multiply
   56,840x = 85,290.72 × 27,656
4. Step 4: Simplify right side
   56,840x = 2,358,800,152.32
5. Step 5: Solve for x
   x = 2,358,800,152.32/56,840
6. Step 6: Final answer
   x = 41,498.95