Finding the Fourth Proportional to 56,778.52, 85,080.16 and 35,958.28

Step by Step Solution

1. Step 1: Write the proportion equation
   56,778.52 : 85,080.16 = 35,958.28 : x
2. Step 2: Convert to fraction form
   56,778.52/85,080.16 = 35,958.28/x
3. Step 3: Cross multiply
   56,778.52x = 85,080.16 × 35,958.28
4. Step 4: Simplify right side
   56,778.52x = 3,059,336,215.72
5. Step 5: Solve for x
   x = 3,059,336,215.72/56,778.52
6. Step 6: Final answer
   x = 53,881.93