Finding the Fourth Proportional to 34,878.42, 48,131.20 and 19,772.47

Step by Step Solution

1. Step 1: Write the proportion equation
   34,878.42 : 48,131.20 = 19,772.47 : x
2. Step 2: Convert to fraction form
   34,878.42/48,131.20 = 19,772.47/x
3. Step 3: Cross multiply
   34,878.42x = 48,131.20 × 19,772.47
4. Step 4: Simplify right side
   34,878.42x = 951,672,538.30
5. Step 5: Solve for x
   x = 951,672,538.30/34,878.42
6. Step 6: Final answer
   x = 27,285.43