Finding the Fourth Proportional to 250,015.98, 345,026.86 and 136,838.72

Step by Step Solution

1. Step 1: Write the proportion equation
   250,015.98 : 345,026.86 = 136,838.72 : x
2. Step 2: Convert to fraction form
   250,015.98/345,026.86 = 136,838.72/x
3. Step 3: Cross multiply
   250,015.98x = 345,026.86 × 136,838.72
4. Step 4: Simplify right side
   250,015.98x = 47,213,033,888.02
5. Step 5: Solve for x
   x = 47,213,033,888.02/250,015.98
6. Step 6: Final answer
   x = 188,840.06