Finding the Fourth Proportional to 91,955.19, 126,604.83 and 78,472.35

Step by Step Solution

1. Step 1: Write the proportion equation
   91,955.19 : 126,604.83 = 78,472.35 : x
2. Step 2: Convert to fraction form
   91,955.19/126,604.83 = 78,472.35/x
3. Step 3: Cross multiply
   91,955.19x = 126,604.83 × 78,472.35
4. Step 4: Simplify right side
   91,955.19x = 9,934,978,531.45
5. Step 5: Solve for x
   x = 9,934,978,531.45/91,955.19
6. Step 6: Final answer
   x = 108,041.52