Finding the Fourth Proportional to 98,749.58, 148,111.88 and 31,288.46

Step by Step Solution

1. Step 1: Write the proportion equation
   98,749.58 : 148,111.88 = 31,288.46 : x
2. Step 2: Convert to fraction form
   98,749.58/148,111.88 = 31,288.46/x
3. Step 3: Cross multiply
   98,749.58x = 148,111.88 × 31,288.46
4. Step 4: Simplify right side
   98,749.58x = 4,634,191,735.90
5. Step 5: Solve for x
   x = 4,634,191,735.90/98,749.58
6. Step 6: Final answer
   x = 46,928.73