Finding the Fourth Proportional to 91,499.15, 126,269.46 and 53,280.98

Step by Step Solution

1. Step 1: Write the proportion equation
   91,499.15 : 126,269.46 = 53,280.98 : x
2. Step 2: Convert to fraction form
   91,499.15/126,269.46 = 53,280.98/x
3. Step 3: Cross multiply
   91,499.15x = 126,269.46 × 53,280.98
4. Step 4: Simplify right side
   91,499.15x = 6,727,759,941.52
5. Step 5: Solve for x
   x = 6,727,759,941.52/91,499.15
6. Step 6: Final answer
   x = 73,528.12