Finding the Fourth Proportional to 1,087,554,090.53, 1,501,004,638.13 and 641,626,474.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,554,090.53 : 1,501,004,638.13 = 641,626,474.52 : x
2. Step 2: Convert to fraction form
   1,087,554,090.53/1,501,004,638.13 = 641,626,474.52/x
3. Step 3: Cross multiply
   1,087,554,090.53x = 1,501,004,638.13 × 641,626,474.52
4. Step 4: Simplify right side
   1,087,554,090.53x = 963,084,314,196,661,504
5. Step 5: Solve for x
   x = 963,084,314,196,661,504/1,087,554,090.53
6. Step 6: Final answer
   x = 885,550,725.79