Finding the Fourth Proportional to 71,970.02, 99,358.78 and 50,525.58

Step by Step Solution

1. Step 1: Write the proportion equation
   71,970.02 : 99,358.78 = 50,525.58 : x
2. Step 2: Convert to fraction form
   71,970.02/99,358.78 = 50,525.58/x
3. Step 3: Cross multiply
   71,970.02x = 99,358.78 × 50,525.58
4. Step 4: Simplify right side
   71,970.02x = 5,020,159,987.59
5. Step 5: Solve for x
   x = 5,020,159,987.59/71,970.02
6. Step 6: Final answer
   x = 69,753.49