Finding the Fourth Proportional to 78,835.71, 108,773.60 and 50,579.67

Step by Step Solution

1. Step 1: Write the proportion equation
   78,835.71 : 108,773.60 = 50,579.67 : x
2. Step 2: Convert to fraction form
   78,835.71/108,773.60 = 50,579.67/x
3. Step 3: Cross multiply
   78,835.71x = 108,773.60 × 50,579.67
4. Step 4: Simplify right side
   78,835.71x = 5,501,732,539.81
5. Step 5: Solve for x
   x = 5,501,732,539.81/78,835.71
6. Step 6: Final answer
   x = 69,787.32