Finding the Fourth Proportional to 91,091,496.48, 125,575,520.08 and 64,940,613.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,091,496.48 : 125,575,520.08 = 64,940,613.56 : x
2. Step 2: Convert to fraction form
   91,091,496.48/125,575,520.08 = 64,940,613.56/x
3. Step 3: Cross multiply
   91,091,496.48x = 125,575,520.08 × 64,940,613.56
4. Step 4: Simplify right side
   91,091,496.48x = 8,154,951,322,111,300
5. Step 5: Solve for x
   x = 8,154,951,322,111,300/91,091,496.48
6. Step 6: Final answer
   x = 89,524,836.43