Finding the Fourth Proportional to 101,425.78, 151,958.24 and 86,483.10

Step by Step Solution

1. Step 1: Write the proportion equation
   101,425.78 : 151,958.24 = 86,483.10 : x
2. Step 2: Convert to fraction form
   101,425.78/151,958.24 = 86,483.10/x
3. Step 3: Cross multiply
   101,425.78x = 151,958.24 × 86,483.10
4. Step 4: Simplify right side
   101,425.78x = 13,141,820,613.95
5. Step 5: Solve for x
   x = 13,141,820,613.95/101,425.78
6. Step 6: Final answer
   x = 129,570.81