Finding the Fourth Proportional to 238,555.26, 357,848.01 and 78,641.82

Step by Step Solution

1. Step 1: Write the proportion equation
   238,555.26 : 357,848.01 = 78,641.82 : x
2. Step 2: Convert to fraction form
   238,555.26/357,848.01 = 78,641.82/x
3. Step 3: Cross multiply
   238,555.26x = 357,848.01 × 78,641.82
4. Step 4: Simplify right side
   238,555.26x = 28,141,818,789.78
5. Step 5: Solve for x
   x = 28,141,818,789.78/238,555.26
6. Step 6: Final answer
   x = 117,967.71