Finding the Fourth Proportional to 295,300.10, 442,878.15 and 84,916.10

Step by Step Solution

1. Step 1: Write the proportion equation
   295,300.10 : 442,878.15 = 84,916.10 : x
2. Step 2: Convert to fraction form
   295,300.10/442,878.15 = 84,916.10/x
3. Step 3: Cross multiply
   295,300.10x = 442,878.15 × 84,916.10
4. Step 4: Simplify right side
   295,300.10x = 37,607,485,273.22
5. Step 5: Solve for x
   x = 37,607,485,273.22/295,300.10
6. Step 6: Final answer
   x = 127,353.45