Finding the Fourth Proportional to 99,144.76, 136,819.86 and 53,822.72

Step by Step Solution

1. Step 1: Write the proportion equation
   99,144.76 : 136,819.86 = 53,822.72 : x
2. Step 2: Convert to fraction form
   99,144.76/136,819.86 = 53,822.72/x
3. Step 3: Cross multiply
   99,144.76x = 136,819.86 × 53,822.72
4. Step 4: Simplify right side
   99,144.76x = 7,364,016,344.80
5. Step 5: Solve for x
   x = 7,364,016,344.80/99,144.76
6. Step 6: Final answer
   x = 74,275.40