Finding the Fourth Proportional to 154,981.68, 213,939.72 and 104,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   154,981.68 : 213,939.72 = 104,748.72 : x
2. Step 2: Convert to fraction form
   154,981.68/213,939.72 = 104,748.72/x
3. Step 3: Cross multiply
   154,981.68x = 213,939.72 × 104,748.72
4. Step 4: Simplify right side
   154,981.68x = 22,409,911,827.16
5. Step 5: Solve for x
   x = 22,409,911,827.16/154,981.68
6. Step 6: Final answer
   x = 144,597.17