Finding the Fourth Proportional to 78,892.96, 118,251.78 and 60,111.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,892.96 : 118,251.78 = 60,111.07 : x
2. Step 2: Convert to fraction form
   78,892.96/118,251.78 = 60,111.07/x
3. Step 3: Cross multiply
   78,892.96x = 118,251.78 × 60,111.07
4. Step 4: Simplify right side
   78,892.96x = 7,108,241,025.20
5. Step 5: Solve for x
   x = 7,108,241,025.20/78,892.96
6. Step 6: Final answer
   x = 90,099.81