Finding the Fourth Proportional to 117,633,748.88, 162,333,675.77 and 64,709,316.92

Step by Step Solution

1. Step 1: Write the proportion equation
   117,633,748.88 : 162,333,675.77 = 64,709,316.92 : x
2. Step 2: Convert to fraction form
   117,633,748.88/162,333,675.77 = 64,709,316.92/x
3. Step 3: Cross multiply
   117,633,748.88x = 162,333,675.77 × 64,709,316.92
4. Step 4: Simplify right side
   117,633,748.88x = 10,504,501,272,189,456
5. Step 5: Solve for x
   x = 10,504,501,272,189,456/117,633,748.88
6. Step 6: Final answer
   x = 89,298,363.54