Finding the Fourth Proportional to 109,123.20, 150,579.30 and 61,375.52

Step by Step Solution

1. Step 1: Write the proportion equation
   109,123.20 : 150,579.30 = 61,375.52 : x
2. Step 2: Convert to fraction form
   109,123.20/150,579.30 = 61,375.52/x
3. Step 3: Cross multiply
   109,123.20x = 150,579.30 × 61,375.52
4. Step 4: Simplify right side
   109,123.20x = 9,241,883,445.34
5. Step 5: Solve for x
   x = 9,241,883,445.34/109,123.20
6. Step 6: Final answer
   x = 84,692.20