Finding the Fourth Proportional to 78,499.55, 117,767.70 and 25,908.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,499.55 : 117,767.70 = 25,908.98 : x
2. Step 2: Convert to fraction form
   78,499.55/117,767.70 = 25,908.98/x
3. Step 3: Cross multiply
   78,499.55x = 117,767.70 × 25,908.98
4. Step 4: Simplify right side
   78,499.55x = 3,051,241,278.37
5. Step 5: Solve for x
   x = 3,051,241,278.37/78,499.55
6. Step 6: Final answer
   x = 38,869.54