Finding the Fourth Proportional to 9,960,052.21, 14,921,870.52 and 7,220,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,960,052.21 : 14,921,870.52 = 7,220,815.50 : x
2. Step 2: Convert to fraction form
   9,960,052.21/14,921,870.52 = 7,220,815.50/x
3. Step 3: Cross multiply
   9,960,052.21x = 14,921,870.52 × 7,220,815.50
4. Step 4: Simplify right side
   9,960,052.21x = 107,748,074,022,844.12
5. Step 5: Solve for x
   x = 107,748,074,022,844.12/9,960,052.21
6. Step 6: Final answer
   x = 10,818,023.02