Finding the Fourth Proportional to 34,760.16, 52,138.20 and 21,435.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,760.16 : 52,138.20 = 21,435.72 : x
2. Step 2: Convert to fraction form
   34,760.16/52,138.20 = 21,435.72/x
3. Step 3: Cross multiply
   34,760.16x = 52,138.20 × 21,435.72
4. Step 4: Simplify right side
   34,760.16x = 1,117,619,856.50
5. Step 5: Solve for x
   x = 1,117,619,856.50/34,760.16
6. Step 6: Final answer
   x = 32,152.32