Finding the Fourth Proportional to 67,139.03, 100,702.86 and 31,591.98

Step by Step Solution

1. Step 1: Write the proportion equation
   67,139.03 : 100,702.86 = 31,591.98 : x
2. Step 2: Convert to fraction form
   67,139.03/100,702.86 = 31,591.98/x
3. Step 3: Cross multiply
   67,139.03x = 100,702.86 × 31,591.98
4. Step 4: Simplify right side
   67,139.03x = 3,181,402,739.06
5. Step 5: Solve for x
   x = 3,181,402,739.06/67,139.03
6. Step 6: Final answer
   x = 47,385.30