Finding the Fourth Proportional to 140,435.20, 193,802.88 and 83,851.52

Step by Step Solution

1. Step 1: Write the proportion equation
   140,435.20 : 193,802.88 = 83,851.52 : x
2. Step 2: Convert to fraction form
   140,435.20/193,802.88 = 83,851.52/x
3. Step 3: Cross multiply
   140,435.20x = 193,802.88 × 83,851.52
4. Step 4: Simplify right side
   140,435.20x = 16,250,666,068.38
5. Step 5: Solve for x
   x = 16,250,666,068.38/140,435.20
6. Step 6: Final answer
   x = 115,716.47