Finding the Fourth Proportional to 109,440.56, 151,027.90 and 59,139.56

Step by Step Solution

1. Step 1: Write the proportion equation
   109,440.56 : 151,027.90 = 59,139.56 : x
2. Step 2: Convert to fraction form
   109,440.56/151,027.90 = 59,139.56/x
3. Step 3: Cross multiply
   109,440.56x = 151,027.90 × 59,139.56
4. Step 4: Simplify right side
   109,440.56x = 8,931,723,553.72
5. Step 5: Solve for x
   x = 8,931,723,553.72/109,440.56
6. Step 6: Final answer
   x = 81,612.55