Finding the Fourth Proportional to 34,152.34, 47,099.52 and 21,406.80

Step by Step Solution

1. Step 1: Write the proportion equation
   34,152.34 : 47,099.52 = 21,406.80 : x
2. Step 2: Convert to fraction form
   34,152.34/47,099.52 = 21,406.80/x
3. Step 3: Cross multiply
   34,152.34x = 47,099.52 × 21,406.80
4. Step 4: Simplify right side
   34,152.34x = 1,008,250,004.74
5. Step 5: Solve for x
   x = 1,008,250,004.74/34,152.34
6. Step 6: Final answer
   x = 29,522.14