Finding the Fourth Proportional to 117,150.81, 161,667.87 and 63,435.98

Step by Step Solution

1. Step 1: Write the proportion equation
   117,150.81 : 161,667.87 = 63,435.98 : x
2. Step 2: Convert to fraction form
   117,150.81/161,667.87 = 63,435.98/x
3. Step 3: Cross multiply
   117,150.81x = 161,667.87 × 63,435.98
4. Step 4: Simplify right side
   117,150.81x = 10,255,558,959.62
5. Step 5: Solve for x
   x = 10,255,558,959.62/117,150.81
6. Step 6: Final answer
   x = 87,541.51