Finding the Fourth Proportional to 9,980,216.74, 14,963,888.68 and 3,915,561.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980,216.74 : 14,963,888.68 = 3,915,561.39 : x
2. Step 2: Convert to fraction form
   9,980,216.74/14,963,888.68 = 3,915,561.39/x
3. Step 3: Cross multiply
   9,980,216.74x = 14,963,888.68 × 3,915,561.39
4. Step 4: Simplify right side
   9,980,216.74x = 58,592,024,759,666.06
5. Step 5: Solve for x
   x = 58,592,024,759,666.06/9,980,216.74
6. Step 6: Final answer
   x = 5,870,816.87