Finding the Fourth Proportional to 9,451,139.50, 13,042,638.12 and 5,376,758.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,451,139.50 : 13,042,638.12 = 5,376,758.50 : x
2. Step 2: Convert to fraction form
   9,451,139.50/13,042,638.12 = 5,376,758.50/x
3. Step 3: Cross multiply
   9,451,139.50x = 13,042,638.12 × 5,376,758.50
4. Step 4: Simplify right side
   9,451,139.50x = 70,127,115,374,134.02
5. Step 5: Solve for x
   x = 70,127,115,374,134.02/9,451,139.50
6. Step 6: Final answer
   x = 7,419,964.06