Finding the Fourth Proportional to 158,444, 218,652.72 and 91,376

Step by Step Solution

1. Step 1: Write the proportion equation
   158,444 : 218,652.72 = 91,376 : x
2. Step 2: Convert to fraction form
   158,444/218,652.72 = 91,376/x
3. Step 3: Cross multiply
   158,444x = 218,652.72 × 91,376
4. Step 4: Simplify right side
   158,444x = 19,979,610,942.72
5. Step 5: Solve for x
   x = 19,979,610,942.72/158,444
6. Step 6: Final answer
   x = 126,098.88