Finding the Fourth Proportional to 91,225.98, 136,834.92 and 28,043.55

Step by Step Solution

1. Step 1: Write the proportion equation
   91,225.98 : 136,834.92 = 28,043.55 : x
2. Step 2: Convert to fraction form
   91,225.98/136,834.92 = 28,043.55/x
3. Step 3: Cross multiply
   91,225.98x = 136,834.92 × 28,043.55
4. Step 4: Simplify right side
   91,225.98x = 3,837,336,920.77
5. Step 5: Solve for x
   x = 3,837,336,920.77/91,225.98
6. Step 6: Final answer
   x = 42,064.08