Finding the Fourth Proportional to 91,296,663.18, 125,915,932.32 and 80,259,814.59

Step by Step Solution

1. Step 1: Write the proportion equation
   91,296,663.18 : 125,915,932.32 = 80,259,814.59 : x
2. Step 2: Convert to fraction form
   91,296,663.18/125,915,932.32 = 80,259,814.59/x
3. Step 3: Cross multiply
   91,296,663.18x = 125,915,932.32 × 80,259,814.59
4. Step 4: Simplify right side
   91,296,663.18x = 10,105,989,381,930,188
5. Step 5: Solve for x
   x = 10,105,989,381,930,188/91,296,663.18
6. Step 6: Final answer
   x = 110,693,962.19