Finding the Fourth Proportional to 91,597.29, 137,182.71 and 89,074.95

Step by Step Solution

1. Step 1: Write the proportion equation
   91,597.29 : 137,182.71 = 89,074.95 : x
2. Step 2: Convert to fraction form
   91,597.29/137,182.71 = 89,074.95/x
3. Step 3: Cross multiply
   91,597.29x = 137,182.71 × 89,074.95
4. Step 4: Simplify right side
   91,597.29x = 12,219,543,034.11
5. Step 5: Solve for x
   x = 12,219,543,034.11/91,597.29
6. Step 6: Final answer
   x = 133,405.07