Finding the Fourth Proportional to 356,851.52, 535,272.64 and 86,981

Step by Step Solution

1. Step 1: Write the proportion equation
   356,851.52 : 535,272.64 = 86,981 : x
2. Step 2: Convert to fraction form
   356,851.52/535,272.64 = 86,981/x
3. Step 3: Cross multiply
   356,851.52x = 535,272.64 × 86,981
4. Step 4: Simplify right side
   356,851.52x = 46,558,549,499.84
5. Step 5: Solve for x
   x = 46,558,549,499.84/356,851.52
6. Step 6: Final answer
   x = 130,470.37