Finding the Fourth Proportional to 101,081.84, 151,499.76 and 71,508.20

Step by Step Solution

1. Step 1: Write the proportion equation
   101,081.84 : 151,499.76 = 71,508.20 : x
2. Step 2: Convert to fraction form
   101,081.84/151,499.76 = 71,508.20/x
3. Step 3: Cross multiply
   101,081.84x = 151,499.76 × 71,508.20
4. Step 4: Simplify right side
   101,081.84x = 10,833,475,138.03
5. Step 5: Solve for x
   x = 10,833,475,138.03/101,081.84
6. Step 6: Final answer
   x = 107,175.29