Finding the Fourth Proportional to 99,321.14, 137,065.86 and 54,002.18

Step by Step Solution

1. Step 1: Write the proportion equation
   99,321.14 : 137,065.86 = 54,002.18 : x
2. Step 2: Convert to fraction form
   99,321.14/137,065.86 = 54,002.18/x
3. Step 3: Cross multiply
   99,321.14x = 137,065.86 × 54,002.18
4. Step 4: Simplify right side
   99,321.14x = 7,401,854,558.25
5. Step 5: Solve for x
   x = 7,401,854,558.25/99,321.14
6. Step 6: Final answer
   x = 74,524.47