Finding the Fourth Proportional to 55,978.56, 77,267.52 and 34,788.96

Step by Step Solution

1. Step 1: Write the proportion equation
   55,978.56 : 77,267.52 = 34,788.96 : x
2. Step 2: Convert to fraction form
   55,978.56/77,267.52 = 34,788.96/x
3. Step 3: Cross multiply
   55,978.56x = 77,267.52 × 34,788.96
4. Step 4: Simplify right side
   55,978.56x = 2,688,056,662.58
5. Step 5: Solve for x
   x = 2,688,056,662.58/55,978.56
6. Step 6: Final answer
   x = 48,019.40