Finding the Fourth Proportional to 272,100.86, 408,181.05 and 92,316.09

Step by Step Solution

1. Step 1: Write the proportion equation
   272,100.86 : 408,181.05 = 92,316.09 : x
2. Step 2: Convert to fraction form
   272,100.86/408,181.05 = 92,316.09/x
3. Step 3: Cross multiply
   272,100.86x = 408,181.05 × 92,316.09
4. Step 4: Simplify right side
   272,100.86x = 37,681,678,548.09
5. Step 5: Solve for x
   x = 37,681,678,548.09/272,100.86
6. Step 6: Final answer
   x = 138,484.23