Finding the Fourth Proportional to 102,220.82, 141,064.72 and 56,897.82

Step by Step Solution

1. Step 1: Write the proportion equation
   102,220.82 : 141,064.72 = 56,897.82 : x
2. Step 2: Convert to fraction form
   102,220.82/141,064.72 = 56,897.82/x
3. Step 3: Cross multiply
   102,220.82x = 141,064.72 × 56,897.82
4. Step 4: Simplify right side
   102,220.82x = 8,026,275,046.91
5. Step 5: Solve for x
   x = 8,026,275,046.91/102,220.82
6. Step 6: Final answer
   x = 78,518.99