Finding the Fourth Proportional to 45,419,300.35, 68,128,950.53 and 45,419,300.35

Step by Step Solution

1. Step 1: Write the proportion equation
   45,419,300.35 : 68,128,950.53 = 45,419,300.35 : x
2. Step 2: Convert to fraction form
   45,419,300.35/68,128,950.53 = 45,419,300.35/x
3. Step 3: Cross multiply
   45,419,300.35x = 68,128,950.53 × 45,419,300.35
4. Step 4: Simplify right side
   45,419,300.35x = 3,094,369,266,425,265.50
5. Step 5: Solve for x
   x = 3,094,369,266,425,265.50/45,419,300.35
6. Step 6: Final answer
   x = 68,128,950.53