Finding the Fourth Proportional to 91,172.81, 125,667.89 and 60,947.11

Step by Step Solution

1. Step 1: Write the proportion equation
   91,172.81 : 125,667.89 = 60,947.11 : x
2. Step 2: Convert to fraction form
   91,172.81/125,667.89 = 60,947.11/x
3. Step 3: Cross multiply
   91,172.81x = 125,667.89 × 60,947.11
4. Step 4: Simplify right side
   91,172.81x = 7,659,094,553.50
5. Step 5: Solve for x
   x = 7,659,094,553.50/91,172.81
6. Step 6: Final answer
   x = 84,006.34