Finding the Fourth Proportional to 116,931.54, 161,419.50 and 68,526.78

Step by Step Solution

1. Step 1: Write the proportion equation
   116,931.54 : 161,419.50 = 68,526.78 : x
2. Step 2: Convert to fraction form
   116,931.54/161,419.50 = 68,526.78/x
3. Step 3: Cross multiply
   116,931.54x = 161,419.50 × 68,526.78
4. Step 4: Simplify right side
   116,931.54x = 11,061,558,564.21
5. Step 5: Solve for x
   x = 11,061,558,564.21/116,931.54
6. Step 6: Final answer
   x = 94,598.59