Finding the Fourth Proportional to 109,012.32, 150,437.60 and 63,692.96

Step by Step Solution

1. Step 1: Write the proportion equation
   109,012.32 : 150,437.60 = 63,692.96 : x
2. Step 2: Convert to fraction form
   109,012.32/150,437.60 = 63,692.96/x
3. Step 3: Cross multiply
   109,012.32x = 150,437.60 × 63,692.96
4. Step 4: Simplify right side
   109,012.32x = 9,581,816,039.30
5. Step 5: Solve for x
   x = 9,581,816,039.30/109,012.32
6. Step 6: Final answer
   x = 87,896.63