Finding the Fourth Proportional to 72,535,429.76, 108,803,028 and 49,747,239.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72,535,429.76 : 108,803,028 = 49,747,239.68 : x
2. Step 2: Convert to fraction form
   72,535,429.76/108,803,028 = 49,747,239.68/x
3. Step 3: Cross multiply
   72,535,429.76x = 108,803,028 × 49,747,239.68
4. Step 4: Simplify right side
   72,535,429.76x = 5,412,650,311,825,751
5. Step 5: Solve for x
   x = 5,412,650,311,825,751/72,535,429.76
6. Step 6: Final answer
   x = 74,620,779.52