Finding the Fourth Proportional to 1,300,655,688.72, 1,950,572,372.76 and 427,113,050.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,655,688.72 : 1,950,572,372.76 = 427,113,050.64 : x
2. Step 2: Convert to fraction form
   1,300,655,688.72/1,950,572,372.76 = 427,113,050.64/x
3. Step 3: Cross multiply
   1,300,655,688.72x = 1,950,572,372.76 × 427,113,050.64
4. Step 4: Simplify right side
   1,300,655,688.72x = 833,114,916,623,626,752
5. Step 5: Solve for x
   x = 833,114,916,623,626,752/1,300,655,688.72
6. Step 6: Final answer
   x = 640,534,557.95