Finding the Fourth Proportional to 82,986.32, 114,507.24 and 78,782.96

Step by Step Solution

1. Step 1: Write the proportion equation
   82,986.32 : 114,507.24 = 78,782.96 : x
2. Step 2: Convert to fraction form
   82,986.32/114,507.24 = 78,782.96/x
3. Step 3: Cross multiply
   82,986.32x = 114,507.24 × 78,782.96
4. Step 4: Simplify right side
   82,986.32x = 9,021,219,308.63
5. Step 5: Solve for x
   x = 9,021,219,308.63/82,986.32
6. Step 6: Final answer
   x = 108,707.31