Finding the Fourth Proportional to 102,064.18, 152,768.71 and 54,560.51

Step by Step Solution

1. Step 1: Write the proportion equation
   102,064.18 : 152,768.71 = 54,560.51 : x
2. Step 2: Convert to fraction form
   102,064.18/152,768.71 = 54,560.51/x
3. Step 3: Cross multiply
   102,064.18x = 152,768.71 × 54,560.51
4. Step 4: Simplify right side
   102,064.18x = 8,335,139,179.76
5. Step 5: Solve for x
   x = 8,335,139,179.76/102,064.18
6. Step 6: Final answer
   x = 81,665.67