Finding the Fourth Proportional to 91,341.65, 137,081.87 and 73,615.61

Step by Step Solution

1. Step 1: Write the proportion equation
   91,341.65 : 137,081.87 = 73,615.61 : x
2. Step 2: Convert to fraction form
   91,341.65/137,081.87 = 73,615.61/x
3. Step 3: Cross multiply
   91,341.65x = 137,081.87 × 73,615.61
4. Step 4: Simplify right side
   91,341.65x = 10,091,365,111.91
5. Step 5: Solve for x
   x = 10,091,365,111.91/91,341.65
6. Step 6: Final answer
   x = 110,479.34