Finding the Fourth Proportional to 71,814.84, 99,116.28 and 54,786.96

Step by Step Solution

1. Step 1: Write the proportion equation
   71,814.84 : 99,116.28 = 54,786.96 : x
2. Step 2: Convert to fraction form
   71,814.84/99,116.28 = 54,786.96/x
3. Step 3: Cross multiply
   71,814.84x = 99,116.28 × 54,786.96
4. Step 4: Simplify right side
   71,814.84x = 5,430,279,667.71
5. Step 5: Solve for x
   x = 5,430,279,667.71/71,814.84
6. Step 6: Final answer
   x = 75,615.01