Finding the Fourth Proportional to 60,787.40, 91,171.98 and 19,229

Step by Step Solution

1. Step 1: Write the proportion equation
   60,787.40 : 91,171.98 = 19,229 : x
2. Step 2: Convert to fraction form
   60,787.40/91,171.98 = 19,229/x
3. Step 3: Cross multiply
   60,787.40x = 91,171.98 × 19,229
4. Step 4: Simplify right side
   60,787.40x = 1,753,146,003.42
5. Step 5: Solve for x
   x = 1,753,146,003.42/60,787.40
6. Step 6: Final answer
   x = 28,840.62