Finding the Fourth Proportional to 71,436.76, 107,147.58 and 29,321.28

Step by Step Solution

1. Step 1: Write the proportion equation
   71,436.76 : 107,147.58 = 29,321.28 : x
2. Step 2: Convert to fraction form
   71,436.76/107,147.58 = 29,321.28/x
3. Step 3: Cross multiply
   71,436.76x = 107,147.58 × 29,321.28
4. Step 4: Simplify right side
   71,436.76x = 3,141,704,084.55
5. Step 5: Solve for x
   x = 3,141,704,084.55/71,436.76
6. Step 6: Final answer
   x = 43,978.82