Finding the Fourth Proportional to 66,602.69, 91,911.71 and 38,308.37

Step by Step Solution

1. Step 1: Write the proportion equation
   66,602.69 : 91,911.71 = 38,308.37 : x
2. Step 2: Convert to fraction form
   66,602.69/91,911.71 = 38,308.37/x
3. Step 3: Cross multiply
   66,602.69x = 91,911.71 × 38,308.37
4. Step 4: Simplify right side
   66,602.69x = 3,520,987,832.25
5. Step 5: Solve for x
   x = 3,520,987,832.25/66,602.69
6. Step 6: Final answer
   x = 52,865.55