Finding the Fourth Proportional to 145,061.76, 217,164.96 and 141,484.80

Step by Step Solution

1. Step 1: Write the proportion equation
   145,061.76 : 217,164.96 = 141,484.80 : x
2. Step 2: Convert to fraction form
   145,061.76/217,164.96 = 141,484.80/x
3. Step 3: Cross multiply
   145,061.76x = 217,164.96 × 141,484.80
4. Step 4: Simplify right side
   145,061.76x = 30,725,540,932.61
5. Step 5: Solve for x
   x = 30,725,540,932.61/145,061.76
6. Step 6: Final answer
   x = 211,810.07