Finding the Fourth Proportional to 72,518,209.28, 108,704,566.72 and 33,683,921

Step by Step Solution

1. Step 1: Write the proportion equation
   72,518,209.28 : 108,704,566.72 = 33,683,921 : x
2. Step 2: Convert to fraction form
   72,518,209.28/108,704,566.72 = 33,683,921/x
3. Step 3: Cross multiply
   72,518,209.28x = 108,704,566.72 × 33,683,921
4. Step 4: Simplify right side
   72,518,209.28x = 3,661,596,037,735,709
5. Step 5: Solve for x
   x = 3,661,596,037,735,709/72,518,209.28
6. Step 6: Final answer
   x = 50,492,091.22