Finding the Fourth Proportional to 55,146.36, 76,061.20 and 34,985.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,146.36 : 76,061.20 = 34,985.88 : x
2. Step 2: Convert to fraction form
   55,146.36/76,061.20 = 34,985.88/x
3. Step 3: Cross multiply
   55,146.36x = 76,061.20 × 34,985.88
4. Step 4: Simplify right side
   55,146.36x = 2,661,068,015.86
5. Step 5: Solve for x
   x = 2,661,068,015.86/55,146.36
6. Step 6: Final answer
   x = 48,254.64