Finding the Fourth Proportional to 55,849.80, 77,071.86 and 30,698.76

Step by Step Solution

1. Step 1: Write the proportion equation
   55,849.80 : 77,071.86 = 30,698.76 : x
2. Step 2: Convert to fraction form
   55,849.80/77,071.86 = 30,698.76/x
3. Step 3: Cross multiply
   55,849.80x = 77,071.86 × 30,698.76
4. Step 4: Simplify right side
   55,849.80x = 2,366,010,532.89
5. Step 5: Solve for x
   x = 2,366,010,532.89/55,849.80
6. Step 6: Final answer
   x = 42,363.81