Finding the Fourth Proportional to 117,665.01, 176,495.99 and 28,919.30

Step by Step Solution

1. Step 1: Write the proportion equation
   117,665.01 : 176,495.99 = 28,919.30 : x
2. Step 2: Convert to fraction form
   117,665.01/176,495.99 = 28,919.30/x
3. Step 3: Cross multiply
   117,665.01x = 176,495.99 × 28,919.30
4. Step 4: Simplify right side
   117,665.01x = 5,104,139,456.53
5. Step 5: Solve for x
   x = 5,104,139,456.53/117,665.01
6. Step 6: Final answer
   x = 43,378.57