Finding the Fourth Proportional to 35,196.79, 48,575.05 and 20,091.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,196.79 : 48,575.05 = 20,091.72 : x
2. Step 2: Convert to fraction form
   35,196.79/48,575.05 = 20,091.72/x
3. Step 3: Cross multiply
   35,196.79x = 48,575.05 × 20,091.72
4. Step 4: Simplify right side
   35,196.79x = 975,956,440.17
5. Step 5: Solve for x
   x = 975,956,440.17/35,196.79
6. Step 6: Final answer
   x = 27,728.56