Finding the Fourth Proportional to 131,709.33, 181,758.86 and 71,279.98

Step by Step Solution

1. Step 1: Write the proportion equation
   131,709.33 : 181,758.86 = 71,279.98 : x
2. Step 2: Convert to fraction form
   131,709.33/181,758.86 = 71,279.98/x
3. Step 3: Cross multiply
   131,709.33x = 181,758.86 × 71,279.98
4. Step 4: Simplify right side
   131,709.33x = 12,955,767,905.62
5. Step 5: Solve for x
   x = 12,955,767,905.62/131,709.33
6. Step 6: Final answer
   x = 98,366.36