Finding the Fourth Proportional to 1,618,425,151.89, 2,233,402,940.70 and 903,971,131.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618,425,151.89 : 2,233,402,940.70 = 903,971,131.71 : x
2. Step 2: Convert to fraction form
   1,618,425,151.89/2,233,402,940.70 = 903,971,131.71/x
3. Step 3: Cross multiply
   1,618,425,151.89x = 2,233,402,940.70 × 903,971,131.71
4. Step 4: Simplify right side
   1,618,425,151.89x = 2,018,931,783,869,020,928
5. Step 5: Solve for x
   x = 2,018,931,783,869,020,928/1,618,425,151.89
6. Step 6: Final answer
   x = 1,247,466,885.64