Finding the Fourth Proportional to 300,099,796.47, 414,181,038.08 and 172,916,116.08

Step by Step Solution

1. Step 1: Write the proportion equation
   300,099,796.47 : 414,181,038.08 = 172,916,116.08 : x
2. Step 2: Convert to fraction form
   300,099,796.47/414,181,038.08 = 172,916,116.08/x
3. Step 3: Cross multiply
   300,099,796.47x = 414,181,038.08 × 172,916,116.08
4. Step 4: Simplify right side
   300,099,796.47x = 71,618,576,456,705,264
5. Step 5: Solve for x
   x = 71,618,576,456,705,264/300,099,796.47
6. Step 6: Final answer
   x = 238,649,200.36