Finding the Fourth Proportional to 72,204,870.84, 99,642,136.14 and 39,165,037.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,204,870.84 : 99,642,136.14 = 39,165,037.80 : x
2. Step 2: Convert to fraction form
   72,204,870.84/99,642,136.14 = 39,165,037.80/x
3. Step 3: Cross multiply
   72,204,870.84x = 99,642,136.14 × 39,165,037.80
4. Step 4: Simplify right side
   72,204,870.84x = 3,902,488,028,395,846
5. Step 5: Solve for x
   x = 3,902,488,028,395,846/72,204,870.84
6. Step 6: Final answer
   x = 54,047,434.52