Finding the Fourth Proportional to 81,895.56, 113,031.34 and 51,282.86

Step by Step Solution

1. Step 1: Write the proportion equation
   81,895.56 : 113,031.34 = 51,282.86 : x
2. Step 2: Convert to fraction form
   81,895.56/113,031.34 = 51,282.86/x
3. Step 3: Cross multiply
   81,895.56x = 113,031.34 × 51,282.86
4. Step 4: Simplify right side
   81,895.56x = 5,796,570,384.83
5. Step 5: Solve for x
   x = 5,796,570,384.83/81,895.56
6. Step 6: Final answer
   x = 70,780.03