Finding the Fourth Proportional to 127,398.42, 191,072.52 and 121,076.10

Step by Step Solution

1. Step 1: Write the proportion equation
   127,398.42 : 191,072.52 = 121,076.10 : x
2. Step 2: Convert to fraction form
   127,398.42/191,072.52 = 121,076.10/x
3. Step 3: Cross multiply
   127,398.42x = 191,072.52 × 121,076.10
4. Step 4: Simplify right side
   127,398.42x = 23,134,315,538.77
5. Step 5: Solve for x
   x = 23,134,315,538.77/127,398.42
6. Step 6: Final answer
   x = 181,590.29