Finding the Fourth Proportional to 309,685.01, 464,573.69 and 109,988.63

Step by Step Solution

1. Step 1: Write the proportion equation
   309,685.01 : 464,573.69 = 109,988.63 : x
2. Step 2: Convert to fraction form
   309,685.01/464,573.69 = 109,988.63/x
3. Step 3: Cross multiply
   309,685.01x = 464,573.69 × 109,988.63
4. Step 4: Simplify right side
   309,685.01x = 51,097,823,147.20
5. Step 5: Solve for x
   x = 51,097,823,147.20/309,685.01
6. Step 6: Final answer
   x = 164,999.34