Finding the Fourth Proportional to 55,659.32, 76,805.64 and 31,782.76

Step by Step Solution

1. Step 1: Write the proportion equation
   55,659.32 : 76,805.64 = 31,782.76 : x
2. Step 2: Convert to fraction form
   55,659.32/76,805.64 = 31,782.76/x
3. Step 3: Cross multiply
   55,659.32x = 76,805.64 × 31,782.76
4. Step 4: Simplify right side
   55,659.32x = 2,441,095,222.77
5. Step 5: Solve for x
   x = 2,441,095,222.77/55,659.32
6. Step 6: Final answer
   x = 43,857.80