Finding the Fourth Proportional to 116,237.16, 160,412.61 and 64,554.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,237.16 : 160,412.61 = 64,554.50 : x
2. Step 2: Convert to fraction form
   116,237.16/160,412.61 = 64,554.50/x
3. Step 3: Cross multiply
   116,237.16x = 160,412.61 × 64,554.50
4. Step 4: Simplify right side
   116,237.16x = 10,355,355,030.18
5. Step 5: Solve for x
   x = 10,355,355,030.18/116,237.16
6. Step 6: Final answer
   x = 89,088.16