Finding the Fourth Proportional to 61,047, 91,986.48 and 50,196.76

Step by Step Solution

1. Step 1: Write the proportion equation
   61,047 : 91,986.48 = 50,196.76 : x
2. Step 2: Convert to fraction form
   61,047/91,986.48 = 50,196.76/x
3. Step 3: Cross multiply
   61,047x = 91,986.48 × 50,196.76
4. Step 4: Simplify right side
   61,047x = 4,617,423,259.80
5. Step 5: Solve for x
   x = 4,617,423,259.80/61,047
6. Step 6: Final answer
   x = 75,637.19