Finding the Fourth Proportional to 113,606.69, 156,777.86 and 65,888.33

Step by Step Solution

1. Step 1: Write the proportion equation
   113,606.69 : 156,777.86 = 65,888.33 : x
2. Step 2: Convert to fraction form
   113,606.69/156,777.86 = 65,888.33/x
3. Step 3: Cross multiply
   113,606.69x = 156,777.86 × 65,888.33
4. Step 4: Simplify right side
   113,606.69x = 10,329,831,376.37
5. Step 5: Solve for x
   x = 10,329,831,376.37/113,606.69
6. Step 6: Final answer
   x = 90,926.26