Finding the Fourth Proportional to 9,259,105.01, 12,777,426.53 and 5,129,123.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,259,105.01 : 12,777,426.53 = 5,129,123.79 : x
2. Step 2: Convert to fraction form
   9,259,105.01/12,777,426.53 = 5,129,123.79/x
3. Step 3: Cross multiply
   9,259,105.01x = 12,777,426.53 × 5,129,123.79
4. Step 4: Simplify right side
   9,259,105.01x = 65,537,002,364,354.53
5. Step 5: Solve for x
   x = 65,537,002,364,354.53/9,259,105.01
6. Step 6: Final answer
   x = 7,078,114.17