Finding the Fourth Proportional to 144,312.42, 199,094.72 and 83,872.25

Step by Step Solution

1. Step 1: Write the proportion equation
   144,312.42 : 199,094.72 = 83,872.25 : x
2. Step 2: Convert to fraction form
   144,312.42/199,094.72 = 83,872.25/x
3. Step 3: Cross multiply
   144,312.42x = 199,094.72 × 83,872.25
4. Step 4: Simplify right side
   144,312.42x = 16,698,520,714.69
5. Step 5: Solve for x
   x = 16,698,520,714.69/144,312.42
6. Step 6: Final answer
   x = 115,710.90