Finding the Fourth Proportional to 118,564,993.50, 163,619,691.03 and 64,301,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,564,993.50 : 163,619,691.03 = 64,301,185.50 : x
2. Step 2: Convert to fraction form
   118,564,993.50/163,619,691.03 = 64,301,185.50/x
3. Step 3: Cross multiply
   118,564,993.50x = 163,619,691.03 × 64,301,185.50
4. Step 4: Simplify right side
   118,564,993.50x = 10,520,940,104,372,716
5. Step 5: Solve for x
   x = 10,520,940,104,372,716/118,564,993.50
6. Step 6: Final answer
   x = 88,735,635.99