Finding the Fourth Proportional to 106,061.90, 158,746.68 and 77,974.52

Step by Step Solution

1. Step 1: Write the proportion equation
   106,061.90 : 158,746.68 = 77,974.52 : x
2. Step 2: Convert to fraction form
   106,061.90/158,746.68 = 77,974.52/x
3. Step 3: Cross multiply
   106,061.90x = 158,746.68 × 77,974.52
4. Step 4: Simplify right side
   106,061.90x = 12,378,196,174.59
5. Step 5: Solve for x
   x = 12,378,196,174.59/106,061.90
6. Step 6: Final answer
   x = 116,707.28