Finding the Fourth Proportional to 91,447.57, 126,173.31 and 62,776.00

Step by Step Solution

1. Step 1: Write the proportion equation
   91,447.57 : 126,173.31 = 62,776.00 : x
2. Step 2: Convert to fraction form
   91,447.57/126,173.31 = 62,776.00/x
3. Step 3: Cross multiply
   91,447.57x = 126,173.31 × 62,776.00
4. Step 4: Simplify right side
   91,447.57x = 7,920,655,077.69
5. Step 5: Solve for x
   x = 7,920,655,077.69/91,447.57
6. Step 6: Final answer
   x = 86,614.17