Finding the Fourth Proportional to 131,700, 181,746.72 and 72,084

Step by Step Solution

1. Step 1: Write the proportion equation
   131,700 : 181,746.72 = 72,084 : x
2. Step 2: Convert to fraction form
   131,700/181,746.72 = 72,084/x
3. Step 3: Cross multiply
   131,700x = 181,746.72 × 72,084
4. Step 4: Simplify right side
   131,700x = 13,101,030,564.48
5. Step 5: Solve for x
   x = 13,101,030,564.48/131,700
6. Step 6: Final answer
   x = 99,476.31