Finding the Fourth Proportional to 59,810.96, 81,941.46 and 57,568.88

Step by Step Solution

1. Step 1: Write the proportion equation
   59,810.96 : 81,941.46 = 57,568.88 : x
2. Step 2: Convert to fraction form
   59,810.96/81,941.46 = 57,568.88/x
3. Step 3: Cross multiply
   59,810.96x = 81,941.46 × 57,568.88
4. Step 4: Simplify right side
   59,810.96x = 4,717,278,077.76
5. Step 5: Solve for x
   x = 4,717,278,077.76/59,810.96
6. Step 6: Final answer
   x = 78,869.79