Finding the Fourth Proportional to 1,272,011,217.94, 1,908,017,524.01 and 581,434,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,011,217.94 : 1,908,017,524.01 = 581,434,196.30 : x
2. Step 2: Convert to fraction form
   1,272,011,217.94/1,908,017,524.01 = 581,434,196.30/x
3. Step 3: Cross multiply
   1,272,011,217.94x = 1,908,017,524.01 × 581,434,196.30
4. Step 4: Simplify right side
   1,272,011,217.94x = 1,109,386,635,590,983,808
5. Step 5: Solve for x
   x = 1,109,386,635,590,983,808/1,272,011,217.94
6. Step 6: Final answer
   x = 872,151,613.09