Finding the Fourth Proportional to 123,533.34, 170,494.27 and 78,215.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,533.34 : 170,494.27 = 78,215.52 : x
2. Step 2: Convert to fraction form
   123,533.34/170,494.27 = 78,215.52/x
3. Step 3: Cross multiply
   123,533.34x = 170,494.27 × 78,215.52
4. Step 4: Simplify right side
   123,533.34x = 13,335,298,428.89
5. Step 5: Solve for x
   x = 13,335,298,428.89/123,533.34
6. Step 6: Final answer
   x = 107,948.99