Finding the Fourth Proportional to 91,969.86, 126,964.32 and 60,187.30

Step by Step Solution

1. Step 1: Write the proportion equation
   91,969.86 : 126,964.32 = 60,187.30 : x
2. Step 2: Convert to fraction form
   91,969.86/126,964.32 = 60,187.30/x
3. Step 3: Cross multiply
   91,969.86x = 126,964.32 × 60,187.30
4. Step 4: Simplify right side
   91,969.86x = 7,641,639,617.14
5. Step 5: Solve for x
   x = 7,641,639,617.14/91,969.86
6. Step 6: Final answer
   x = 83,088.52