Finding the Fourth Proportional to 66,667.10, 99,980.27 and 35,059.99

Step by Step Solution

1. Step 1: Write the proportion equation
   66,667.10 : 99,980.27 = 35,059.99 : x
2. Step 2: Convert to fraction form
   66,667.10/99,980.27 = 35,059.99/x
3. Step 3: Cross multiply
   66,667.10x = 99,980.27 × 35,059.99
4. Step 4: Simplify right side
   66,667.10x = 3,505,307,357.30
5. Step 5: Solve for x
   x = 3,505,307,357.30/66,667.10
6. Step 6: Final answer
   x = 52,579.27