Finding the Fourth Proportional to 105,064.62, 157,507.35 and 45,856.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,064.62 : 157,507.35 = 45,856.02 : x
2. Step 2: Convert to fraction form
   105,064.62/157,507.35 = 45,856.02/x
3. Step 3: Cross multiply
   105,064.62x = 157,507.35 × 45,856.02
4. Step 4: Simplify right side
   105,064.62x = 7,222,660,191.75
5. Step 5: Solve for x
   x = 7,222,660,191.75/105,064.62
6. Step 6: Final answer
   x = 68,744.93