Finding the Fourth Proportional to 113,071.06, 156,019.89 and 65,330.74

Step by Step Solution

1. Step 1: Write the proportion equation
   113,071.06 : 156,019.89 = 65,330.74 : x
2. Step 2: Convert to fraction form
   113,071.06/156,019.89 = 65,330.74/x
3. Step 3: Cross multiply
   113,071.06x = 156,019.89 × 65,330.74
4. Step 4: Simplify right side
   113,071.06x = 10,192,894,868.42
5. Step 5: Solve for x
   x = 10,192,894,868.42/113,071.06
6. Step 6: Final answer
   x = 90,145.92