Finding the Fourth Proportional to 321,061.61, 481,597.10 and 152,599.12

Step by Step Solution

1. Step 1: Write the proportion equation
   321,061.61 : 481,597.10 = 152,599.12 : x
2. Step 2: Convert to fraction form
   321,061.61/481,597.10 = 152,599.12/x
3. Step 3: Cross multiply
   321,061.61x = 481,597.10 × 152,599.12
4. Step 4: Simplify right side
   321,061.61x = 73,491,292,259.81
5. Step 5: Solve for x
   x = 73,491,292,259.81/321,061.61
6. Step 6: Final answer
   x = 228,900.90