Finding the Fourth Proportional to 152,608.32, 228,911.76 and 47,427.12

Step by Step Solution

1. Step 1: Write the proportion equation
   152,608.32 : 228,911.76 = 47,427.12 : x
2. Step 2: Convert to fraction form
   152,608.32/228,911.76 = 47,427.12/x
3. Step 3: Cross multiply
   152,608.32x = 228,911.76 × 47,427.12
4. Step 4: Simplify right side
   152,608.32x = 10,856,625,510.93
5. Step 5: Solve for x
   x = 10,856,625,510.93/152,608.32
6. Step 6: Final answer
   x = 71,140.46