Finding the Fourth Proportional to 131,191.82, 181,012.64 and 73,820

Step by Step Solution

1. Step 1: Write the proportion equation
   131,191.82 : 181,012.64 = 73,820 : x
2. Step 2: Convert to fraction form
   131,191.82/181,012.64 = 73,820/x
3. Step 3: Cross multiply
   131,191.82x = 181,012.64 × 73,820
4. Step 4: Simplify right side
   131,191.82x = 13,362,353,084.80
5. Step 5: Solve for x
   x = 13,362,353,084.80/131,191.82
6. Step 6: Final answer
   x = 101,853.55