Finding the Fourth Proportional to 138,824.52, 208,018.61 and 107,311.82

Step by Step Solution

1. Step 1: Write the proportion equation
   138,824.52 : 208,018.61 = 107,311.82 : x
2. Step 2: Convert to fraction form
   138,824.52/208,018.61 = 107,311.82/x
3. Step 3: Cross multiply
   138,824.52x = 208,018.61 × 107,311.82
4. Step 4: Simplify right side
   138,824.52x = 22,322,854,056.32
5. Step 5: Solve for x
   x = 22,322,854,056.32/138,824.52
6. Step 6: Final answer
   x = 160,799.07