Finding the Fourth Proportional to 56,971.56, 78,608.76 and 33,085.92

Step by Step Solution

1. Step 1: Write the proportion equation
   56,971.56 : 78,608.76 = 33,085.92 : x
2. Step 2: Convert to fraction form
   56,971.56/78,608.76 = 33,085.92/x
3. Step 3: Cross multiply
   56,971.56x = 78,608.76 × 33,085.92
4. Step 4: Simplify right side
   56,971.56x = 2,600,843,144.66
5. Step 5: Solve for x
   x = 2,600,843,144.66/56,971.56
6. Step 6: Final answer
   x = 45,651.60