Finding the Fourth Proportional to 47,445.67, 71,484.73 and 42,948.15

Step by Step Solution

1. Step 1: Write the proportion equation
   47,445.67 : 71,484.73 = 42,948.15 : x
2. Step 2: Convert to fraction form
   47,445.67/71,484.73 = 42,948.15/x
3. Step 3: Cross multiply
   47,445.67x = 71,484.73 × 42,948.15
4. Step 4: Simplify right side
   47,445.67x = 3,070,136,906.75
5. Step 5: Solve for x
   x = 3,070,136,906.75/47,445.67
6. Step 6: Final answer
   x = 64,708.47