Finding the Fourth Proportional to 372,774.72, 559,123.20 and 106,518

Step by Step Solution

1. Step 1: Write the proportion equation
   372,774.72 : 559,123.20 = 106,518 : x
2. Step 2: Convert to fraction form
   372,774.72/559,123.20 = 106,518/x
3. Step 3: Cross multiply
   372,774.72x = 559,123.20 × 106,518
4. Step 4: Simplify right side
   372,774.72x = 59,556,685,017.60
5. Step 5: Solve for x
   x = 59,556,685,017.60/372,774.72
6. Step 6: Final answer
   x = 159,765.89