Finding the Fourth Proportional to 626,440,697.05, 939,655,061.71 and 380,865,132.76

Step by Step Solution

1. Step 1: Write the proportion equation
   626,440,697.05 : 939,655,061.71 = 380,865,132.76 : x
2. Step 2: Convert to fraction form
   626,440,697.05/939,655,061.71 = 380,865,132.76/x
3. Step 3: Cross multiply
   626,440,697.05x = 939,655,061.71 × 380,865,132.76
4. Step 4: Simplify right side
   626,440,697.05x = 357,881,849,826,785,152
5. Step 5: Solve for x
   x = 357,881,849,826,785,152/626,440,697.05
6. Step 6: Final answer
   x = 571,294,061.05