Finding the Fourth Proportional to 238,705.67, 358,100.88 and 78,790.41

Step by Step Solution

1. Step 1: Write the proportion equation
   238,705.67 : 358,100.88 = 78,790.41 : x
2. Step 2: Convert to fraction form
   238,705.67/358,100.88 = 78,790.41/x
3. Step 3: Cross multiply
   238,705.67x = 358,100.88 × 78,790.41
4. Step 4: Simplify right side
   238,705.67x = 28,214,915,156.56
5. Step 5: Solve for x
   x = 28,214,915,156.56/238,705.67
6. Step 6: Final answer
   x = 118,199.60