Finding the Fourth Proportional to 127,221.56, 190,832.38 and 42,981.98

Step by Step Solution

1. Step 1: Write the proportion equation
   127,221.56 : 190,832.38 = 42,981.98 : x
2. Step 2: Convert to fraction form
   127,221.56/190,832.38 = 42,981.98/x
3. Step 3: Cross multiply
   127,221.56x = 190,832.38 × 42,981.98
4. Step 4: Simplify right side
   127,221.56x = 8,202,353,540.51
5. Step 5: Solve for x
   x = 8,202,353,540.51/127,221.56
6. Step 6: Final answer
   x = 64,472.98