Finding the Fourth Proportional to 55,876.41, 77,111.15 and 30,726.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,876.41 : 77,111.15 = 30,726.81 : x
2. Step 2: Convert to fraction form
   55,876.41/77,111.15 = 30,726.81/x
3. Step 3: Cross multiply
   55,876.41x = 77,111.15 × 30,726.81
4. Step 4: Simplify right side
   55,876.41x = 2,369,379,501.30
5. Step 5: Solve for x
   x = 2,369,379,501.30/55,876.41
6. Step 6: Final answer
   x = 42,403.93