Finding the Fourth Proportional to 109,390.14, 164,019.51 and 42,750.86

Step by Step Solution

1. Step 1: Write the proportion equation
   109,390.14 : 164,019.51 = 42,750.86 : x
2. Step 2: Convert to fraction form
   109,390.14/164,019.51 = 42,750.86/x
3. Step 3: Cross multiply
   109,390.14x = 164,019.51 × 42,750.86
4. Step 4: Simplify right side
   109,390.14x = 7,011,974,289.18
5. Step 5: Solve for x
   x = 7,011,974,289.18/109,390.14
6. Step 6: Final answer
   x = 64,100.61