Finding the Fourth Proportional to 34,153.34, 47,100.90 and 21,407.80

Step by Step Solution

1. Step 1: Write the proportion equation
   34,153.34 : 47,100.90 = 21,407.80 : x
2. Step 2: Convert to fraction form
   34,153.34/47,100.90 = 21,407.80/x
3. Step 3: Cross multiply
   34,153.34x = 47,100.90 × 21,407.80
4. Step 4: Simplify right side
   34,153.34x = 1,008,326,647.02
5. Step 5: Solve for x
   x = 1,008,326,647.02/34,153.34
6. Step 6: Final answer
   x = 29,523.52