Finding the Fourth Proportional to 98,426.30, 147,662.96 and 31,866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,426.30 : 147,662.96 = 31,866.50 : x
2. Step 2: Convert to fraction form
   98,426.30/147,662.96 = 31,866.50/x
3. Step 3: Cross multiply
   98,426.30x = 147,662.96 × 31,866.50
4. Step 4: Simplify right side
   98,426.30x = 4,705,501,273.31
5. Step 5: Solve for x
   x = 4,705,501,273.31/98,426.30
6. Step 6: Final answer
   x = 47,807.36