Finding the Fourth Proportional to 126,385.58, 189,636.98 and 55,298.84

Step by Step Solution

1. Step 1: Write the proportion equation
   126,385.58 : 189,636.98 = 55,298.84 : x
2. Step 2: Convert to fraction form
   126,385.58/189,636.98 = 55,298.84/x
3. Step 3: Cross multiply
   126,385.58x = 189,636.98 × 55,298.84
4. Step 4: Simplify right side
   126,385.58x = 10,486,705,015.10
5. Step 5: Solve for x
   x = 10,486,705,015.10/126,385.58
6. Step 6: Final answer
   x = 82,973.90