Finding the Fourth Proportional to 131,490.29, 197,256.18 and 42,723.06

Step by Step Solution

1. Step 1: Write the proportion equation
   131,490.29 : 197,256.18 = 42,723.06 : x
2. Step 2: Convert to fraction form
   131,490.29/197,256.18 = 42,723.06/x
3. Step 3: Cross multiply
   131,490.29x = 197,256.18 × 42,723.06
4. Step 4: Simplify right side
   131,490.29x = 8,427,387,613.51
5. Step 5: Solve for x
   x = 8,427,387,613.51/131,490.29
6. Step 6: Final answer
   x = 64,091.33