Finding the Fourth Proportional to 117,089,788.59, 161,583,749.78 and 64,882,205.19

Step by Step Solution

1. Step 1: Write the proportion equation
   117,089,788.59 : 161,583,749.78 = 64,882,205.19 : x
2. Step 2: Convert to fraction form
   117,089,788.59/161,583,749.78 = 64,882,205.19/x
3. Step 3: Cross multiply
   117,089,788.59x = 161,583,749.78 × 64,882,205.19
4. Step 4: Simplify right side
   117,089,788.59x = 10,483,910,008,271,166
5. Step 5: Solve for x
   x = 10,483,910,008,271,166/117,089,788.59
6. Step 6: Final answer
   x = 89,537,355.35