Finding the Fourth Proportional to 98,426.89, 147,663.71 and 31,866.99

Step by Step Solution

1. Step 1: Write the proportion equation
   98,426.89 : 147,663.71 = 31,866.99 : x
2. Step 2: Convert to fraction form
   98,426.89/147,663.71 = 31,866.99/x
3. Step 3: Cross multiply
   98,426.89x = 147,663.71 × 31,866.99
4. Step 4: Simplify right side
   98,426.89x = 4,705,597,969.93
5. Step 5: Solve for x
   x = 4,705,597,969.93/98,426.89
6. Step 6: Final answer
   x = 47,808.05