Finding the Fourth Proportional to 139,830.12, 209,664.18 and 95,510.43

Step by Step Solution

1. Step 1: Write the proportion equation
   139,830.12 : 209,664.18 = 95,510.43 : x
2. Step 2: Convert to fraction form
   139,830.12/209,664.18 = 95,510.43/x
3. Step 3: Cross multiply
   139,830.12x = 209,664.18 × 95,510.43
4. Step 4: Simplify right side
   139,830.12x = 20,025,115,987.40
5. Step 5: Solve for x
   x = 20,025,115,987.40/139,830.12
6. Step 6: Final answer
   x = 143,210.32