Finding the Fourth Proportional to 113,735.12, 156,904.56 and 68,386.88

Step by Step Solution

1. Step 1: Write the proportion equation
   113,735.12 : 156,904.56 = 68,386.88 : x
2. Step 2: Convert to fraction form
   113,735.12/156,904.56 = 68,386.88/x
3. Step 3: Cross multiply
   113,735.12x = 156,904.56 × 68,386.88
4. Step 4: Simplify right side
   113,735.12x = 10,730,213,316.17
5. Step 5: Solve for x
   x = 10,730,213,316.17/113,735.12
6. Step 6: Final answer
   x = 94,343.89