Finding the Fourth Proportional to 866,585,141.02, 1,195,887,494.58 and 495,315,144.01

Step by Step Solution

1. Step 1: Write the proportion equation
   866,585,141.02 : 1,195,887,494.58 = 495,315,144.01 : x
2. Step 2: Convert to fraction form
   866,585,141.02/1,195,887,494.58 = 495,315,144.01/x
3. Step 3: Cross multiply
   866,585,141.02x = 1,195,887,494.58 × 495,315,144.01
4. Step 4: Simplify right side
   866,585,141.02x = 592,341,186,597,650,688
5. Step 5: Solve for x
   x = 592,341,186,597,650,688/866,585,141.02
6. Step 6: Final answer
   x = 683,534,898.72