Finding the Fourth Proportional to 920,761,298.24, 1,270,635,762.72 and 503,064,614.72

Step by Step Solution

1. Step 1: Write the proportion equation
   920,761,298.24 : 1,270,635,762.72 = 503,064,614.72 : x
2. Step 2: Convert to fraction form
   920,761,298.24/1,270,635,762.72 = 503,064,614.72/x
3. Step 3: Cross multiply
   920,761,298.24x = 1,270,635,762.72 × 503,064,614.72
4. Step 4: Simplify right side
   920,761,298.24x = 639,211,890,422,190,208
5. Step 5: Solve for x
   x = 639,211,890,422,190,208/920,761,298.24
6. Step 6: Final answer
   x = 694,221,066.46