Finding the Fourth Proportional to 82,123,577.01, 113,320,514.57 and 65,420,856.59

Step by Step Solution

1. Step 1: Write the proportion equation
   82,123,577.01 : 113,320,514.57 = 65,420,856.59 : x
2. Step 2: Convert to fraction form
   82,123,577.01/113,320,514.57 = 65,420,856.59/x
3. Step 3: Cross multiply
   82,123,577.01x = 113,320,514.57 × 65,420,856.59
4. Step 4: Simplify right side
   82,123,577.01x = 7,413,525,131,495,269
5. Step 5: Solve for x
   x = 7,413,525,131,495,269/82,123,577.01
6. Step 6: Final answer
   x = 90,272,798.65