Finding the Fourth Proportional to 158,981.94, 219,303.72 and 99,262.26

Step by Step Solution

1. Step 1: Write the proportion equation
   158,981.94 : 219,303.72 = 99,262.26 : x
2. Step 2: Convert to fraction form
   158,981.94/219,303.72 = 99,262.26/x
3. Step 3: Cross multiply
   158,981.94x = 219,303.72 × 99,262.26
4. Step 4: Simplify right side
   158,981.94x = 21,768,582,873.61
5. Step 5: Solve for x
   x = 21,768,582,873.61/158,981.94
6. Step 6: Final answer
   x = 136,924.88