Finding the Fourth Proportional to 149,071.59, 223,608.72 and 42,455.45

Step by Step Solution

1. Step 1: Write the proportion equation
   149,071.59 : 223,608.72 = 42,455.45 : x
2. Step 2: Convert to fraction form
   149,071.59/223,608.72 = 42,455.45/x
3. Step 3: Cross multiply
   149,071.59x = 223,608.72 × 42,455.45
4. Step 4: Simplify right side
   149,071.59x = 9,493,408,831.52
5. Step 5: Solve for x
   x = 9,493,408,831.52/149,071.59
6. Step 6: Final answer
   x = 63,683.56