Finding the Fourth Proportional to 76,851, 106,141.86 and 51,656.76

Step by Step Solution

1. Step 1: Write the proportion equation
   76,851 : 106,141.86 = 51,656.76 : x
2. Step 2: Convert to fraction form
   76,851/106,141.86 = 51,656.76/x
3. Step 3: Cross multiply
   76,851x = 106,141.86 × 51,656.76
4. Step 4: Simplify right side
   76,851x = 5,482,944,587.97
5. Step 5: Solve for x
   x = 5,482,944,587.97/76,851
6. Step 6: Final answer
   x = 71,345.13