Finding the Fourth Proportional to 71,970.52, 99,359.47 and 50,526.07

Step by Step Solution

1. Step 1: Write the proportion equation
   71,970.52 : 99,359.47 = 50,526.07 : x
2. Step 2: Convert to fraction form
   71,970.52/99,359.47 = 50,526.07/x
3. Step 3: Cross multiply
   71,970.52x = 99,359.47 × 50,526.07
4. Step 4: Simplify right side
   71,970.52x = 5,020,243,536.38
5. Step 5: Solve for x
   x = 5,020,243,536.38/71,970.52
6. Step 6: Final answer
   x = 69,754.17