Finding the Fourth Proportional to 91,870.34, 126,794.94 and 56,081.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,870.34 : 126,794.94 = 56,081.18 : x
2. Step 2: Convert to fraction form
   91,870.34/126,794.94 = 56,081.18/x
3. Step 3: Cross multiply
   91,870.34x = 126,794.94 × 56,081.18
4. Step 4: Simplify right side
   91,870.34x = 7,110,809,853.23
5. Step 5: Solve for x
   x = 7,110,809,853.23/91,870.34
6. Step 6: Final answer
   x = 77,400.50