Finding the Fourth Proportional to 78,748.61, 118,145.73 and 25,448.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,748.61 : 118,145.73 = 25,448.72 : x
2. Step 2: Convert to fraction form
   78,748.61/118,145.73 = 25,448.72/x
3. Step 3: Cross multiply
   78,748.61x = 118,145.73 × 25,448.72
4. Step 4: Simplify right side
   78,748.61x = 3,006,657,601.97
5. Step 5: Solve for x
   x = 3,006,657,601.97/78,748.61
6. Step 6: Final answer
   x = 38,180.45