Finding the Fourth Proportional to 2,144,510,619.95, 2,958,573,653.16 and 1,240,099,438.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144,510,619.95 : 2,958,573,653.16 = 1,240,099,438.21 : x
2. Step 2: Convert to fraction form
   2,144,510,619.95/2,958,573,653.16 = 1,240,099,438.21/x
3. Step 3: Cross multiply
   2,144,510,619.95x = 2,958,573,653.16 × 1,240,099,438.21
4. Step 4: Simplify right side
   2,144,510,619.95x = 3,668,925,525,174,514,688
5. Step 5: Solve for x
   x = 3,668,925,525,174,514,688/2,144,510,619.95
6. Step 6: Final answer
   x = 1,710,845,118.25