Finding the Fourth Proportional to 78,127.01, 107,744.41 and 51,259.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,127.01 : 107,744.41 = 51,259.31 : x
2. Step 2: Convert to fraction form
   78,127.01/107,744.41 = 51,259.31/x
3. Step 3: Cross multiply
   78,127.01x = 107,744.41 × 51,259.31
4. Step 4: Simplify right side
   78,127.01x = 5,522,903,856.66
5. Step 5: Solve for x
   x = 5,522,903,856.66/78,127.01
6. Step 6: Final answer
   x = 70,691.35