Finding the Fourth Proportional to 76,939,563.40, 106,173,408.83 and 42,131,654.13

Step by Step Solution

1. Step 1: Write the proportion equation
   76,939,563.40 : 106,173,408.83 = 42,131,654.13 : x
2. Step 2: Convert to fraction form
   76,939,563.40/106,173,408.83 = 42,131,654.13/x
3. Step 3: Cross multiply
   76,939,563.40x = 106,173,408.83 × 42,131,654.13
4. Step 4: Simplify right side
   76,939,563.40x = 4,473,261,338,218,914.50
5. Step 5: Solve for x
   x = 4,473,261,338,218,914.50/76,939,563.40
6. Step 6: Final answer
   x = 58,139,936.60