Finding the Fourth Proportional to 9,980,375.49, 13,772,908.83 and 5,396,685.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980,375.49 : 13,772,908.83 = 5,396,685.93 : x
2. Step 2: Convert to fraction form
   9,980,375.49/13,772,908.83 = 5,396,685.93/x
3. Step 3: Cross multiply
   9,980,375.49x = 13,772,908.83 × 5,396,685.93
4. Step 4: Simplify right side
   9,980,375.49x = 74,328,063,298,033.77
5. Step 5: Solve for x
   x = 74,328,063,298,033.77/9,980,375.49
6. Step 6: Final answer
   x = 7,447,421.53