Finding the Fourth Proportional to 208,443,949.02, 312,668,584.56 and 55,088,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   208,443,949.02 : 312,668,584.56 = 55,088,680.50 : x
2. Step 2: Convert to fraction form
   208,443,949.02/312,668,584.56 = 55,088,680.50/x
3. Step 3: Cross multiply
   208,443,949.02x = 312,668,584.56 × 55,088,680.50
4. Step 4: Simplify right side
   208,443,949.02x = 17,224,499,757,213,074
5. Step 5: Solve for x
   x = 17,224,499,757,213,074/208,443,949.02
6. Step 6: Final answer
   x = 82,633,724.02