Finding the Fourth Proportional to 91,529.06, 126,320.72 and 55,740.02

Step by Step Solution

1. Step 1: Write the proportion equation
   91,529.06 : 126,320.72 = 55,740.02 : x
2. Step 2: Convert to fraction form
   91,529.06/126,320.72 = 55,740.02/x
3. Step 3: Cross multiply
   91,529.06x = 126,320.72 × 55,740.02
4. Step 4: Simplify right side
   91,529.06x = 7,041,118,548.91
5. Step 5: Solve for x
   x = 7,041,118,548.91/91,529.06
6. Step 6: Final answer
   x = 76,927.69