Finding the Fourth Proportional to 55,641.34, 76,785.06 and 30,490.84

Step by Step Solution

1. Step 1: Write the proportion equation
   55,641.34 : 76,785.06 = 30,490.84 : x
2. Step 2: Convert to fraction form
   55,641.34/76,785.06 = 30,490.84/x
3. Step 3: Cross multiply
   55,641.34x = 76,785.06 × 30,490.84
4. Step 4: Simplify right side
   55,641.34x = 2,341,240,978.85
5. Step 5: Solve for x
   x = 2,341,240,978.85/55,641.34
6. Step 6: Final answer
   x = 42,077.37