Finding the Fourth Proportional to 100,841.96, 139,159.94 and 63,137

Step by Step Solution

1. Step 1: Write the proportion equation
   100,841.96 : 139,159.94 = 63,137 : x
2. Step 2: Convert to fraction form
   100,841.96/139,159.94 = 63,137/x
3. Step 3: Cross multiply
   100,841.96x = 139,159.94 × 63,137
4. Step 4: Simplify right side
   100,841.96x = 8,786,141,131.78
5. Step 5: Solve for x
   x = 8,786,141,131.78/100,841.96
6. Step 6: Final answer
   x = 87,127.83