Finding the Fourth Proportional to 452,518.48, 678,498.72 and 152,970.76

Step by Step Solution

1. Step 1: Write the proportion equation
   452,518.48 : 678,498.72 = 152,970.76 : x
2. Step 2: Convert to fraction form
   452,518.48/678,498.72 = 152,970.76/x
3. Step 3: Cross multiply
   452,518.48x = 678,498.72 × 152,970.76
4. Step 4: Simplify right side
   452,518.48x = 103,790,464,857.43
5. Step 5: Solve for x
   x = 103,790,464,857.43/452,518.48
6. Step 6: Final answer
   x = 229,361.83