Finding the Fourth Proportional to 117,633,749.88, 162,333,677.15 and 64,709,317.92

Step by Step Solution

1. Step 1: Write the proportion equation
   117,633,749.88 : 162,333,677.15 = 64,709,317.92 : x
2. Step 2: Convert to fraction form
   117,633,749.88/162,333,677.15 = 64,709,317.92/x
3. Step 3: Cross multiply
   117,633,749.88x = 162,333,677.15 × 64,709,317.92
4. Step 4: Simplify right side
   117,633,749.88x = 10,504,501,523,821,990
5. Step 5: Solve for x
   x = 10,504,501,523,821,990/117,633,749.88
6. Step 6: Final answer
   x = 89,298,364.92