Finding the Fourth Proportional to 51,100.29, 77,130.41 and 51,100.29

Step by Step Solution

1. Step 1: Write the proportion equation
   51,100.29 : 77,130.41 = 51,100.29 : x
2. Step 2: Convert to fraction form
   51,100.29/77,130.41 = 51,100.29/x
3. Step 3: Cross multiply
   51,100.29x = 77,130.41 × 51,100.29
4. Step 4: Simplify right side
   51,100.29x = 3,941,386,318.82
5. Step 5: Solve for x
   x = 3,941,386,318.82/51,100.29
6. Step 6: Final answer
   x = 77,130.41