Finding the Fourth Proportional to 119,071.82, 164,327.33 and 78,715.60

Step by Step Solution

1. Step 1: Write the proportion equation
   119,071.82 : 164,327.33 = 78,715.60 : x
2. Step 2: Convert to fraction form
   119,071.82/164,327.33 = 78,715.60/x
3. Step 3: Cross multiply
   119,071.82x = 164,327.33 × 78,715.60
4. Step 4: Simplify right side
   119,071.82x = 12,935,124,377.35
5. Step 5: Solve for x
   x = 12,935,124,377.35/119,071.82
6. Step 6: Final answer
   x = 108,632.96