Finding the Fourth Proportional to 174,595.50, 240,941.79 and 99,144

Step by Step Solution

1. Step 1: Write the proportion equation
   174,595.50 : 240,941.79 = 99,144 : x
2. Step 2: Convert to fraction form
   174,595.50/240,941.79 = 99,144/x
3. Step 3: Cross multiply
   174,595.50x = 240,941.79 × 99,144
4. Step 4: Simplify right side
   174,595.50x = 23,887,932,827.76
5. Step 5: Solve for x
   x = 23,887,932,827.76/174,595.50
6. Step 6: Final answer
   x = 136,818.72