Finding the Fourth Proportional to 117,100.96, 161,599.35 and 63,385.81

Step by Step Solution

1. Step 1: Write the proportion equation
   117,100.96 : 161,599.35 = 63,385.81 : x
2. Step 2: Convert to fraction form
   117,100.96/161,599.35 = 63,385.81/x
3. Step 3: Cross multiply
   117,100.96x = 161,599.35 × 63,385.81
4. Step 4: Simplify right side
   117,100.96x = 10,243,105,528.92
5. Step 5: Solve for x
   x = 10,243,105,528.92/117,100.96
6. Step 6: Final answer
   x = 87,472.43