Finding the Fourth Proportional to 91,893,510.72, 126,845,537.49 and 82,086,915.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,893,510.72 : 126,845,537.49 = 82,086,915.24 : x
2. Step 2: Convert to fraction form
   91,893,510.72/126,845,537.49 = 82,086,915.24/x
3. Step 3: Cross multiply
   91,893,510.72x = 126,845,537.49 × 82,086,915.24
4. Step 4: Simplify right side
   91,893,510.72x = 10,412,358,884,513,872
5. Step 5: Solve for x
   x = 10,412,358,884,513,872/91,893,510.72
6. Step 6: Final answer
   x = 113,308,968.21