Finding the Fourth Proportional to 9,978,429.33, 14,967,643.99 and 8,902,261.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978,429.33 : 14,967,643.99 = 8,902,261.30 : x
2. Step 2: Convert to fraction form
   9,978,429.33/14,967,643.99 = 8,902,261.30/x
3. Step 3: Cross multiply
   9,978,429.33x = 14,967,643.99 × 8,902,261.30
4. Step 4: Simplify right side
   9,978,429.33x = 133,245,877,844,354.59
5. Step 5: Solve for x
   x = 133,245,877,844,354.59/9,978,429.33
6. Step 6: Final answer
   x = 13,353,391.95