Finding the Fourth Proportional to 1,876,421,543.72, 2,589,412,428.72 and 1,029,646,264.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,876,421,543.72 : 2,589,412,428.72 = 1,029,646,264.73 : x
2. Step 2: Convert to fraction form
   1,876,421,543.72/2,589,412,428.72 = 1,029,646,264.73/x
3. Step 3: Cross multiply
   1,876,421,543.72x = 2,589,412,428.72 × 1,029,646,264.73
4. Step 4: Simplify right side
   1,876,421,543.72x = 2,666,178,835,067,937,792
5. Step 5: Solve for x
   x = 2,666,178,835,067,937,792/1,876,421,543.72
6. Step 6: Final answer
   x = 1,420,884,792.12