Finding the Fourth Proportional to 131,809.68, 197,743.56 and 38,322.72

Step by Step Solution

1. Step 1: Write the proportion equation
   131,809.68 : 197,743.56 = 38,322.72 : x
2. Step 2: Convert to fraction form
   131,809.68/197,743.56 = 38,322.72/x
3. Step 3: Cross multiply
   131,809.68x = 197,743.56 × 38,322.72
4. Step 4: Simplify right side
   131,809.68x = 7,578,071,081.68
5. Step 5: Solve for x
   x = 7,578,071,081.68/131,809.68
6. Step 6: Final answer
   x = 57,492.52