Finding the Fourth Proportional to 945,096,918.80, 1,304,233,984.33 and 521,710,826.00

Step by Step Solution

1. Step 1: Write the proportion equation
   945,096,918.80 : 1,304,233,984.33 = 521,710,826.00 : x
2. Step 2: Convert to fraction form
   945,096,918.80/1,304,233,984.33 = 521,710,826.00/x
3. Step 3: Cross multiply
   945,096,918.80x = 1,304,233,984.33 × 521,710,826.00
4. Step 4: Simplify right side
   945,096,918.80x = 680,432,989,254,249,984
5. Step 5: Solve for x
   x = 680,432,989,254,249,984/945,096,918.80
6. Step 6: Final answer
   x = 719,961,070.36