Finding the Fourth Proportional to 67,724,123.72, 93,457,701.07 and 39,848,639.45

Step by Step Solution

1. Step 1: Write the proportion equation
   67,724,123.72 : 93,457,701.07 = 39,848,639.45 : x
2. Step 2: Convert to fraction form
   67,724,123.72/93,457,701.07 = 39,848,639.45/x
3. Step 3: Cross multiply
   67,724,123.72x = 93,457,701.07 × 39,848,639.45
4. Step 4: Simplify right side
   67,724,123.72x = 3,724,162,233,565,066
5. Step 5: Solve for x
   x = 3,724,162,233,565,066/67,724,123.72
6. Step 6: Final answer
   x = 54,990,187.09