Finding the Fourth Proportional to 55,853.55, 77,077.71 and 31,980.15

Step by Step Solution

1. Step 1: Write the proportion equation
   55,853.55 : 77,077.71 = 31,980.15 : x
2. Step 2: Convert to fraction form
   55,853.55/77,077.71 = 31,980.15/x
3. Step 3: Cross multiply
   55,853.55x = 77,077.71 × 31,980.15
4. Step 4: Simplify right side
   55,853.55x = 2,464,956,727.46
5. Step 5: Solve for x
   x = 2,464,956,727.46/55,853.55
6. Step 6: Final answer
   x = 44,132.50