Finding the Fourth Proportional to 76,828,373.47, 105,956,150.85 and 54,457,110.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,828,373.47 : 105,956,150.85 = 54,457,110.34 : x
2. Step 2: Convert to fraction form
   76,828,373.47/105,956,150.85 = 54,457,110.34/x
3. Step 3: Cross multiply
   76,828,373.47x = 105,956,150.85 × 54,457,110.34
4. Step 4: Simplify right side
   76,828,373.47x = 5,770,065,797,871,533
5. Step 5: Solve for x
   x = 5,770,065,797,871,533/76,828,373.47
6. Step 6: Final answer
   x = 75,103,318.44