Finding the Fourth Proportional to 78,687.32, 108,588.96 and 46,857.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,687.32 : 108,588.96 = 46,857.56 : x
2. Step 2: Convert to fraction form
   78,687.32/108,588.96 = 46,857.56/x
3. Step 3: Cross multiply
   78,687.32x = 108,588.96 × 46,857.56
4. Step 4: Simplify right side
   78,687.32x = 5,088,213,708.54
5. Step 5: Solve for x
   x = 5,088,213,708.54/78,687.32
6. Step 6: Final answer
   x = 64,663.71