Finding the Fourth Proportional to 102,114.69, 140,917.01 and 57,402.69

Step by Step Solution

1. Step 1: Write the proportion equation
   102,114.69 : 140,917.01 = 57,402.69 : x
2. Step 2: Convert to fraction form
   102,114.69/140,917.01 = 57,402.69/x
3. Step 3: Cross multiply
   102,114.69x = 140,917.01 × 57,402.69
4. Step 4: Simplify right side
   102,114.69x = 8,089,015,440.76
5. Step 5: Solve for x
   x = 8,089,015,440.76/102,114.69
6. Step 6: Final answer
   x = 79,215.00