Finding the Fourth Proportional to 83,672.32, 115,485.60 and 50,157.76

Step by Step Solution

1. Step 1: Write the proportion equation
   83,672.32 : 115,485.60 = 50,157.76 : x
2. Step 2: Convert to fraction form
   83,672.32/115,485.60 = 50,157.76/x
3. Step 3: Cross multiply
   83,672.32x = 115,485.60 × 50,157.76
4. Step 4: Simplify right side
   83,672.32x = 5,792,499,008.26
5. Step 5: Solve for x
   x = 5,792,499,008.26/83,672.32
6. Step 6: Final answer
   x = 69,228.38