Finding the Fourth Proportional to 116,215.79, 174,322.87 and 76,948.61

Step by Step Solution

1. Step 1: Write the proportion equation
   116,215.79 : 174,322.87 = 76,948.61 : x
2. Step 2: Convert to fraction form
   116,215.79/174,322.87 = 76,948.61/x
3. Step 3: Cross multiply
   116,215.79x = 174,322.87 × 76,948.61
4. Step 4: Simplify right side
   116,215.79x = 13,413,901,473.72
5. Step 5: Solve for x
   x = 13,413,901,473.72/116,215.79
6. Step 6: Final answer
   x = 115,422.37