Finding the Fourth Proportional to 91,296,758.89, 125,916,064.35 and 80,259,910.30

Step by Step Solution

1. Step 1: Write the proportion equation
   91,296,758.89 : 125,916,064.35 = 80,259,910.30 : x
2. Step 2: Convert to fraction form
   91,296,758.89/125,916,064.35 = 80,259,910.30/x
3. Step 3: Cross multiply
   91,296,758.89x = 125,916,064.35 × 80,259,910.30
4. Step 4: Simplify right side
   91,296,758.89x = 10,106,012,030,060,026
5. Step 5: Solve for x
   x = 10,106,012,030,060,026/91,296,758.89
6. Step 6: Final answer
   x = 110,694,094.21