Finding the Fourth Proportional to 140,643.15, 194,181.51 and 83,300.91

Step by Step Solution

1. Step 1: Write the proportion equation
   140,643.15 : 194,181.51 = 83,300.91 : x
2. Step 2: Convert to fraction form
   140,643.15/194,181.51 = 83,300.91/x
3. Step 3: Cross multiply
   140,643.15x = 194,181.51 × 83,300.91
4. Step 4: Simplify right side
   140,643.15x = 16,175,496,488.17
5. Step 5: Solve for x
   x = 16,175,496,488.17/140,643.15
6. Step 6: Final answer
   x = 115,010.91