Finding the Fourth Proportional to 456,484,985.42, 684,301,493.59 and 180,138,488.02

Step by Step Solution

1. Step 1: Write the proportion equation
   456,484,985.42 : 684,301,493.59 = 180,138,488.02 : x
2. Step 2: Convert to fraction form
   456,484,985.42/684,301,493.59 = 180,138,488.02/x
3. Step 3: Cross multiply
   456,484,985.42x = 684,301,493.59 × 180,138,488.02
4. Step 4: Simplify right side
   456,484,985.42x = 123,269,036,405,130,336
5. Step 5: Solve for x
   x = 123,269,036,405,130,336/456,484,985.42
6. Step 6: Final answer
   x = 270,039,629.65