Finding the Fourth Proportional to 71,032.58, 106,530.42 and 21,100.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,032.58 : 106,530.42 = 21,100.94 : x
2. Step 2: Convert to fraction form
   71,032.58/106,530.42 = 21,100.94/x
3. Step 3: Cross multiply
   71,032.58x = 106,530.42 × 21,100.94
4. Step 4: Simplify right side
   71,032.58x = 2,247,892,000.59
5. Step 5: Solve for x
   x = 2,247,892,000.59/71,032.58
6. Step 6: Final answer
   x = 31,645.93