Finding the Fourth Proportional to 78,672.61, 118,058.12 and 31,925.48

Step by Step Solution

1. Step 1: Write the proportion equation
   78,672.61 : 118,058.12 = 31,925.48 : x
2. Step 2: Convert to fraction form
   78,672.61/118,058.12 = 31,925.48/x
3. Step 3: Cross multiply
   78,672.61x = 118,058.12 × 31,925.48
4. Step 4: Simplify right side
   78,672.61x = 3,769,062,523.86
5. Step 5: Solve for x
   x = 3,769,062,523.86/78,672.61
6. Step 6: Final answer
   x = 47,908.19