Finding the Fourth Proportional to 64,345,061.16, 87,608,256.84 and 64,140,757.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,345,061.16 : 87,608,256.84 = 64,140,757.38 : x
2. Step 2: Convert to fraction form
   64,345,061.16/87,608,256.84 = 64,140,757.38/x
3. Step 3: Cross multiply
   64,345,061.16x = 87,608,256.84 × 64,140,757.38
4. Step 4: Simplify right side
   64,345,061.16x = 5,619,259,946,459,166
5. Step 5: Solve for x
   x = 5,619,259,946,459,166/64,345,061.16
6. Step 6: Final answer
   x = 87,330,089.45