Finding the Fourth Proportional to 117,150.77, 161,680.00 and 84,472.07

Step by Step Solution

1. Step 1: Write the proportion equation
   117,150.77 : 161,680.00 = 84,472.07 : x
2. Step 2: Convert to fraction form
   117,150.77/161,680.00 = 84,472.07/x
3. Step 3: Cross multiply
   117,150.77x = 161,680.00 × 84,472.07
4. Step 4: Simplify right side
   117,150.77x = 13,657,443,258.02
5. Step 5: Solve for x
   x = 13,657,443,258.02/117,150.77
6. Step 6: Final answer
   x = 116,580.05