Finding the Fourth Proportional to 101,106.45, 151,536.69 and 71,532.81

Step by Step Solution

1. Step 1: Write the proportion equation
   101,106.45 : 151,536.69 = 71,532.81 : x
2. Step 2: Convert to fraction form
   101,106.45/151,536.69 = 71,532.81/x
3. Step 3: Cross multiply
   101,106.45x = 151,536.69 × 71,532.81
4. Step 4: Simplify right side
   101,106.45x = 10,839,845,253.80
5. Step 5: Solve for x
   x = 10,839,845,253.80/101,106.45
6. Step 6: Final answer
   x = 107,212.20