Finding the Fourth Proportional to 76,986,550.56, 106,241,436.72 and 42,180,559.68

Step by Step Solution

1. Step 1: Write the proportion equation
   76,986,550.56 : 106,241,436.72 = 42,180,559.68 : x
2. Step 2: Convert to fraction form
   76,986,550.56/106,241,436.72 = 42,180,559.68/x
3. Step 3: Cross multiply
   76,986,550.56x = 106,241,436.72 × 42,180,559.68
4. Step 4: Simplify right side
   76,986,550.56x = 4,481,323,262,056,903.50
5. Step 5: Solve for x
   x = 4,481,323,262,056,903.50/76,986,550.56
6. Step 6: Final answer
   x = 58,209,170.69