Finding the Fourth Proportional to 119,082.48, 164,342.12 and 78,726.12

Step by Step Solution

1. Step 1: Write the proportion equation
   119,082.48 : 164,342.12 = 78,726.12 : x
2. Step 2: Convert to fraction form
   119,082.48/164,342.12 = 78,726.12/x
3. Step 3: Cross multiply
   119,082.48x = 164,342.12 × 78,726.12
4. Step 4: Simplify right side
   119,082.48x = 12,938,017,460.17
5. Step 5: Solve for x
   x = 12,938,017,460.17/119,082.48
6. Step 6: Final answer
   x = 108,647.53