Finding the Fourth Proportional to 101,315,463.82, 139,815,459.61 and 54,905,717.75

Step by Step Solution

1. Step 1: Write the proportion equation
   101,315,463.82 : 139,815,459.61 = 54,905,717.75 : x
2. Step 2: Convert to fraction form
   101,315,463.82/139,815,459.61 = 54,905,717.75/x
3. Step 3: Cross multiply
   101,315,463.82x = 139,815,459.61 × 54,905,717.75
4. Step 4: Simplify right side
   101,315,463.82x = 7,676,668,161,596,842
5. Step 5: Solve for x
   x = 7,676,668,161,596,842/101,315,463.82
6. Step 6: Final answer
   x = 75,769,955.27