Finding the Fourth Proportional to 116,338,513.86, 160,547,109.98 and 64,128,421.43

Step by Step Solution

1. Step 1: Write the proportion equation
   116,338,513.86 : 160,547,109.98 = 64,128,421.43 : x
2. Step 2: Convert to fraction form
   116,338,513.86/160,547,109.98 = 64,128,421.43/x
3. Step 3: Cross multiply
   116,338,513.86x = 160,547,109.98 × 64,128,421.43
4. Step 4: Simplify right side
   116,338,513.86x = 10,295,632,727,042,620
5. Step 5: Solve for x
   x = 10,295,632,727,042,620/116,338,513.86
6. Step 6: Final answer
   x = 88,497,199.99