Finding the Fourth Proportional to 55,613.59, 76,746.86 and 30,120.02

Step by Step Solution

1. Step 1: Write the proportion equation
   55,613.59 : 76,746.86 = 30,120.02 : x
2. Step 2: Convert to fraction form
   55,613.59/76,746.86 = 30,120.02/x
3. Step 3: Cross multiply
   55,613.59x = 76,746.86 × 30,120.02
4. Step 4: Simplify right side
   55,613.59x = 2,311,616,824.55
5. Step 5: Solve for x
   x = 2,311,616,824.55/55,613.59
6. Step 6: Final answer
   x = 41,565.68