Finding the Fourth Proportional to 238,826.34, 358,156.35 and 78,868.08

Step by Step Solution

1. Step 1: Write the proportion equation
   238,826.34 : 358,156.35 = 78,868.08 : x
2. Step 2: Convert to fraction form
   238,826.34/358,156.35 = 78,868.08/x
3. Step 3: Cross multiply
   238,826.34x = 358,156.35 × 78,868.08
4. Step 4: Simplify right side
   238,826.34x = 28,247,103,664.31
5. Step 5: Solve for x
   x = 28,247,103,664.31/238,826.34
6. Step 6: Final answer
   x = 118,274.66