Finding the Fourth Proportional to 117,609,969.48, 162,301,892.72 and 65,397,884.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,609,969.48 : 162,301,892.72 = 65,397,884.12 : x
2. Step 2: Convert to fraction form
   117,609,969.48/162,301,892.72 = 65,397,884.12/x
3. Step 3: Cross multiply
   117,609,969.48x = 162,301,892.72 × 65,397,884.12
4. Step 4: Simplify right side
   117,609,969.48x = 10,614,200,372,559,232
5. Step 5: Solve for x
   x = 10,614,200,372,559,232/117,609,969.48
6. Step 6: Final answer
   x = 90,249,155.06