Finding the Fourth Proportional to 158,832.16, 219,193.56 and 91,764.16

Step by Step Solution

1. Step 1: Write the proportion equation
   158,832.16 : 219,193.56 = 91,764.16 : x
2. Step 2: Convert to fraction form
   158,832.16/219,193.56 = 91,764.16/x
3. Step 3: Cross multiply
   158,832.16x = 219,193.56 × 91,764.16
4. Step 4: Simplify right side
   158,832.16x = 20,114,112,910.81
5. Step 5: Solve for x
   x = 20,114,112,910.81/158,832.16
6. Step 6: Final answer
   x = 126,637.53