Finding the Fourth Proportional to 56,146.77, 77,479.22 and 30,648.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,146.77 : 77,479.22 = 30,648.06 : x
2. Step 2: Convert to fraction form
   56,146.77/77,479.22 = 30,648.06/x
3. Step 3: Cross multiply
   56,146.77x = 77,479.22 × 30,648.06
4. Step 4: Simplify right side
   56,146.77x = 2,374,587,859.93
5. Step 5: Solve for x
   x = 2,374,587,859.93/56,146.77
6. Step 6: Final answer
   x = 42,292.51