Finding the Fourth Proportional to 452,403,816.29, 678,612,493.58 and 172,300,200.15

Step by Step Solution

1. Step 1: Write the proportion equation
   452,403,816.29 : 678,612,493.58 = 172,300,200.15 : x
2. Step 2: Convert to fraction form
   452,403,816.29/678,612,493.58 = 172,300,200.15/x
3. Step 3: Cross multiply
   452,403,816.29x = 678,612,493.58 × 172,300,200.15
4. Step 4: Simplify right side
   452,403,816.29x = 116,925,068,467,263,104
5. Step 5: Solve for x
   x = 116,925,068,467,263,104/452,403,816.29
6. Step 6: Final answer
   x = 258,452,878.29