Finding the Fourth Proportional to 117,054.32, 161,551.87 and 76,828.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,054.32 : 161,551.87 = 76,828.10 : x
2. Step 2: Convert to fraction form
   117,054.32/161,551.87 = 76,828.10/x
3. Step 3: Cross multiply
   117,054.32x = 161,551.87 × 76,828.10
4. Step 4: Simplify right side
   117,054.32x = 12,411,722,223.72
5. Step 5: Solve for x
   x = 12,411,722,223.72/117,054.32
6. Step 6: Final answer
   x = 106,033.87