Finding the Fourth Proportional to 91,516.69, 126,227.93 and 83,987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   91,516.69 : 126,227.93 = 83,987.34 : x
2. Step 2: Convert to fraction form
   91,516.69/126,227.93 = 83,987.34/x
3. Step 3: Cross multiply
   91,516.69x = 126,227.93 × 83,987.34
4. Step 4: Simplify right side
   91,516.69x = 10,601,548,074.41
5. Step 5: Solve for x
   x = 10,601,548,074.41/91,516.69
6. Step 6: Final answer
   x = 115,842.78