Finding the Fourth Proportional to 151,814.46, 209,488.04 and 88,139.82

Step by Step Solution

1. Step 1: Write the proportion equation
   151,814.46 : 209,488.04 = 88,139.82 : x
2. Step 2: Convert to fraction form
   151,814.46/209,488.04 = 88,139.82/x
3. Step 3: Cross multiply
   151,814.46x = 209,488.04 × 88,139.82
4. Step 4: Simplify right side
   151,814.46x = 18,464,238,137.75
5. Step 5: Solve for x
   x = 18,464,238,137.75/151,814.46
6. Step 6: Final answer
   x = 121,623.71