Finding the Fourth Proportional to 117,077,036.42, 161,567,609.92 and 64,866,894.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,077,036.42 : 161,567,609.92 = 64,866,894.50 : x
2. Step 2: Convert to fraction form
   117,077,036.42/161,567,609.92 = 64,866,894.50/x
3. Step 3: Cross multiply
   117,077,036.42x = 161,567,609.92 × 64,866,894.50
4. Step 4: Simplify right side
   117,077,036.42x = 10,480,389,107,297,792
5. Step 5: Solve for x
   x = 10,480,389,107,297,792/117,077,036.42
6. Step 6: Final answer
   x = 89,517,034.49